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17 tháng 9 2020

vbh dr tmnfgjhmnijm 

16 tháng 10 2020

A, B và C đang chơi trò chơi.

A, B và C chọn một số từ 1 đến 100, sau đó một thiết bị sẽ chọn ngẫu nhiên một số từ 1 đến 100. 2 người chơi đoán gần nhất với số mà thiết bị chọn sẽ chiến thắng.

Biết rằng A chọn trước, B chọn thứ hai và C chọn thứ ba. B phải có chiến lược gì để giành chiến thắng mọi lúc?

Question 1:The least common multiple of 330; 65; 15 is Question 2:Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.The composite numbers are  (Write numbers in order from the least to the greatest and use ";")Question 3:The common factors of 18 and 27 are (Write numbers in order from the least to the greatest and use ";")Question 4:Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is Question 5:Find four integer numbers a,b,c,d such thata + b + c + d = 1a + c + d = 2a + b + d = 3a + b + c...
Đọc tiếp

Question 1:
The least common multiple of 330; 65; 15 is 

Question 2:
Given seven numbers: 25; 17; 39; 43; 239; 1021; 1023.
The composite numbers are  
(Write numbers in order from the least to the greatest and use ";")

Question 3:
The common factors of 18 and 27 are 
(Write numbers in order from the least to the greatest and use ";")

Question 4:
Given the set of even numbers: {2; 4; 6; …; 100}.The number of elements is 

Question 5:
Find four integer numbers a,b,c,d such that
a + b + c + d = 1
a + c + d = 2
a + b + d = 3
a + b + c = 4
Answer: (a;b;c;d)=() 

Question 6:
Find a four-digit natural number that is less than 2015.If the thousands digit is erased,the number will be decreased by 9 times. 
Answer:The number is 

Question 7:
Calculate: 1×2+2×3+⋯+100×101=

Question 8:
The  term of the expression A=1-7+13-19+25-31+⋯ is 

Question 9:
Given the expression A= ...
Find the value of n such that 2A+3=
Answer: n=

Question 10:
A natural number has six digits and the units digit is 4.If the units digit is moved to the first row then the number will be increasedby 4 times.The number is 

1
16 tháng 3 2016

chết liền đưa nhìu câu quá

From each number, pick out the word whose underlined part is pronounced differently from the others.1.         A. out                         B. round                     C. about                     D. would2.         A. too                         B. soon                       C. good                       D. food3.         A. though                   B. enough                  C. cough                    D. rough4.         A. happy                    B. hour                       C. high...
Đọc tiếp

From each number, pick out the word whose underlined part is pronounced differently from the others.

1.         A. out                         B. round                     C. about                     D. would

2.         A. too                         B. soon                       C. good                       D. food

3.         A. though                   B. enough                  C. cough                    D. rough

4.         A. happy                    B. hour                       C. high                        D. hotel

5.         A. equal                     B. fashion                  C. champagne           D. match

6.         A. only                       B. cotton                    C. cross                      D. economic

7.         A. baggy                     B. minority                C. style                       D. symbol

8.         A. design                   B. ghost                      C. clothing                 D. strong

9.         A. casual                    B. sale                        C. sleeveless             D. slit

10.       A. baggy                    B. fashion                  C. label                      D. casual

11.       A. economy               B. occasion                C. freedom                 D. logical

12.       A. encourage             B. young                    C. proud                     D. enough

13.       A. rivalry                   B. economic              C. symbolic               D. comic

14.       A. fade                       B. fashion                  C. label                      D. plain

15.       A. champagne           B. check                     C. cheese                   D. choose

16        A. boxes                     B. wasches                 C. watches                 D. goes

17.       A. tent                        B. rely                        C. tend                        D. send

1
3 tháng 1 2022

1D 2C 3A 4B 5A 6A 7C 8B 9A 10C 11C 12C 13A 14B 15A 16D 17B

I. From each number, pick out the word whose underlined part is pronounced differently from the 1. A. forest                  B. pollute                    C. foreign                    D. honest2. A. pretty                  B. setting                    C. petty                       D. well3. A. stone                  B. zone                        C. none                       D. phone4. A. switch                B. catch                       C. match                     D. stomach5. A....
Đọc tiếp

I. From each number, pick out the word whose underlined part is pronounced differently from the

1. A. forest                  B. pollute                    C. foreign                    D. honest

2. A. pretty                  B. setting                    C. petty                       D. well

3. A. stone                  B. zone                        C. none                       D. phone

4. A. switch                B. catch                       C. match                     D. stomach

5. A. occupy                B. puppy                      C. study                       D. ready

From each number, pick out one word which has the stress on the first syllable.

1. A. inspiration          B. collection               C. reputation               D. limitation

2. A. letter                   B. happy                      C. today                      D. lovely

Choose the word or the phrase or sentence that best completes each unfinished sentence below or that best keeps the meaning of the original sentence if it is substituted

1. If people drive their cars _______, they  won’t  get hurt themselves  and others.

A. careful                    B. carefully                 C. careless.

2. She _______ won the scholarship to study abroad.

A. success                   B. successful   C.  successfully.

3. If the weather gets worse , the children _______ school for some days

A. don’t have  B. won’t have             C. wouldn’t have .

4. If she _______  enough money, she will  buy her son a motor bike.

A. earn                        B. will earn                 C.  earns .

5. If everybody_______  all the trash in the trash can ,  the beach will not be so dirty like this .

A. put                          B. puts                         C. will put.

6. If she _______ the airport, I’ll let you  know.

A. arrives                    B. arrive                      C. will arrive .

7. If people solve the problems of the smoke from vehicles and factories, the air _______ pure and fresh.

A.  is                           B. will be                    C. would .

8. There is more pollution in the city _______  there is more traffic in the streets.

A. and                         B. because                   C.  but

9. The kids didn’t go to the movie last night _______   it rain so heavily

A. and             B. but                          C. as

10.  The bus didn’t stop _______  it was   full of passengers.

A.  since                      B. but                          C. and

11.  He hit the wall _______ he rode carelessly.

A. because                  B. but                          C. and 

12. Children  should drink milk _______  it’s good for  their  health .

A. and             B. as                            C. but

13. People find the water dirty_______  there are some water waste chemicals in it.

A. and                         B. but                          C. as

14. The air is polluted _______  the factories produce a lot of smoke.

A. and                         B.  since                      C. but.

15. The children stopped fighting _______ their parents came back home.

A. and                         B. when                       C. but

16. _______ it got dark,  the students couldn’t  find the ways  out of the forest.

A. And                        B.As                            C. But.

17.  The building was completely  collapsed _______  the  firefighter  came.

A. and             B. when                       C. but

19. If she _______  hard , she’ll break past  records and  set new one.

A. try                           B. tries                        C. will try .

20. _______  it’s rainy,   I walk home with umbrella.

A. When                      B. Though                   C. As

21. _______ you smoke too much, you’ll get  respiratory problems.

A. If                            B. though                    C. as

22. If her father doesn’t drink too much wine , he _______ so sick .

A. won’t be                 B. doesn’t get              C. isn’t.

23. This newspaper is _______  everyday. It’s a daily newspaper.

A. publishing             B. published    C         .  to publish   

24. He shouted and looked _______ At me and angry when I broke the vase.

A. angry                      B. angrier                    C. angrily 

25.  He is tired _______  he stay up late  watching TV.

A.  so               B. because                   C. but  

26.  we are talking about the preservation of _______  resources.

A. natural                    B. naturally.                C. nature 

27. Is he  really _______  that you can’t come there.

A.  disappoint             B. disappointed           C. disappointing 

28.   I think most  children  are creative enough to write_______  poems.

A. beauty                    B. beautiful                 C. beautifully  

29. It is your policy to _______  forest and increase forestation.

A. protect                    B. protecting  C. to protect 

30. Everyone must take part in _______  deforestation

A. prevent                   B. preventing  C. to prevent   

Read the text then choose the best option to complete the passage

LEARNING A SECOND LANGUAGE

Some people learn a second language (1) _________ . Other people have trouble learning a new language. How can you help (2) _________ learn a new language, such as English? There are several ways to make learning English a little (3) _________ and more interesting. The first step is to feel positive about learning English. If you believe that you can learn, you will learn. (4) _________ patient. You don’t to have to understand (5) _________ all at once. It’s natural to make mistakes when you learn something new. We can learn from our mistakes. The second step is to practice your English. For example, write in the journal, or diary, everyday. You will get used to (6) _________ in English and you will feel more comfortable expressing your ideas in English. After several weeks, you will see that your wrting is improving. (7) _________ you must speak English everyday. You can practice with your classmates (8) _________ class.

The third step is to keep a record of your language learning. You can write this in your journal. After (9) _________ class, think about what you did. Did you answer a question (10) _________ ? Did you understand something the teacher expalined? Perhaps the lesson was difficult, but you tried to understand it.

It is important to practice every day and make a record of your achivements.

1. A. ease                    B. easy                        C. easily                      D. All are corret

2. A. itself                   B. yourself                  C. himself                   D. herself

3. A. ease                    B. easy                        C. easily                      D. easier

4. A. Be                       B. Being                      C. To be                      D. Been

5. A. anything             B. nothing                   C. everything              D. something

6. A. write                   B. writing                    C. to write                   D. written

7. A. In addition          B. Addition                 C. Additional              D. By addition

8. A. of side                B. outside                    C. beside                     D. by side

9. A. some                   B. each                        C. all                           D. few

10.  A. correct             B. correction               C. correctly                 D. corrective

            Read the following passage and answer the questions

Everyday on radio, on TV, and in the newspaper, we hear, see or read about many problems in the world, for example, pollution problems.

Air  pollution is the first kind. It mostly comes from fumes released from motorbikes, cars, airplanes, trains and poisonous gases emitted from factories. Also, waste is dumped any where, even in the city where many people are living. The second pollution  problem is sea pollution. Many people earn their living from fishing in the sea, and the fish they catch feed many people. But the sea has become so polluted from oil spills and factory wastes that the fish are dying. This pollution is not only killing the fish, but is also affecting those people who eat fish.

Seldom do you find a place nowadays that is not polluted. This problem is growing more difficult everyday. We must find a good solution that makes the world a better place to live.

1. We hear, see and read about problems in the world  _________

A. once a week           B. every day                C. every week             D. every year

2. What   causes the air pollution ?

A. fumes from vehicles.                     B. poisonous gases from factories.

C. waste from everywhere                  D. all are correct

3. The sea has become polluted because of  _________

A. oil spills                                         B. factories wastes

C. smoke from factories                     D. a and b  are correct

4. In order to make the world a better place to live, we  _________

A. should not prevent pollution          B. should find a good solution.

C. should kill the fish.                        D. None is correct.

0
I. From each number, pick out the word whose underlined part is pronounced differently from the others.1.         A. out                          B. round                      C. about                      D. would2.         A. chair                       B. check                      C. machine                  D. child3.         A. too                          B. soon                        C. good                       D. food4.         A. though                    B. enough...
Đọc tiếp

I. From each number, pick out the word whose underlined part is pronounced differently from the others.

1.         A. out                          B. round                      C. about                      D. would

2.         A. chair                       B. check                      C. machine                  D. child

3.         A. too                          B. soon                        C. good                       D. food

4.         A. though                    B. enough                   C. cough                     D. rough

5.         A. happy                     B. hour                        C. high                        D. hotel

II. From each number, pick out one word which has the stress on the first syllable.

1.         A. region                     B. comprise                 C. Malaysia                 D. compulsory

2.         A. association             B. Buddhism               C. divide                     D. together

3.         A. enjoy                      B. religion                   C. Hinduism                D. population

4.         A. Chinese                  B. although                 C. instruction             D. currency

5.         A. primary                   B. religion                   C. tropical                   D. friendliness

3
2 tháng 8 2021

1 D

2 C

3 C

4 A

5 B

II

1 A

2 B

3 C

4 D

5 A, C, D

2 tháng 8 2021

I. From each number, pick out the word whose underlined part is pronounced differently from the others.

1.         A. out                          B. round                      C. about                      D. would

2.         A. chair                       B. check                      C. machine                  D. child

3.         A. too                          B. soon                        C. good                       D. food

4.         A. though                    B. enough                   C. cough                     D. rough

5.         A. happy                     B. hour                        C. high                        D. hotel

II. From each number, pick out one word which has the stress on the first syllable.

1.         A. region                     B. comprise                 C. Malaysia                 D. compulsory

2.         A. association             B. Buddhism               C. divide                     D. together

3.         A. enjoy                      B. religion                   C. Hinduism                D. population

4.         A. Chinese                  B. although                 C. instruction             D. currency

5.         A. primary                   B. religion                   C. tropical                   D. friendliness

I. From each number, pick out the word whose underlined part is pronounced differently from the others.1.         A. out                          B. round                      C. about                      D. would2.         A. chair                       B. check                      C. machine                  D. child3.         A. too                          B. soon                        C. good                       D. food4.         A. though                    B....
Đọc tiếp

I. From each number, pick out the word whose underlined part is pronounced differently from the others.

1.         A. out                          B. round                      C. about                      D. would

2.         A. chair                       B. check                      C. machine                  D. child

3.         A. too                          B. soon                        C. good                       D. food

4.         A. though                    B. enough                   C. cough                     D. rough

5.         A. happy                     B. hour                        C. high                        D. hotel

7
14 tháng 9 2021

Gíupp mình vs

14 tháng 9 2021

I. From each number, pick out the word whose underlined part is pronounced differently from the others.

1.         A. out                          B. round                      C. about                      D. would

2.         A. chair                       B. check                      C. machine                  D. child

3.         A. too                          B. soon                        C. good                       D. food

4.         A. though                    B. enough                   C. cough                     D. rough

5.         A. happy                     B. hour                        C. high                        D. hotel

The number of ways is : \(\frac{9\cdot8\cdot7\cdot6\cdot5}{120}=126\) ( ways )

Ans:126 ways 

Choose the best option to complete each sentence 1. My mother doesn't mind............... up me from school every day . A. pick B. picks C. to pick D. picking 2. To many people , the shopping mall is one of the top destinations to see friends and............... . A. walking B. eating out C. hang out D. doing DIY 3. They detest............... so early in the morning . A. getting up B. get up C. to get up D. gets up 4.These days a lot of children prefer ............... to playing outside A....
Đọc tiếp

Choose the best option to complete each sentence 1. My mother doesn't mind............... up me from school every day . A. pick B. picks C. to pick D. picking 2. To many people , the shopping mall is one of the top destinations to see friends and............... . A. walking B. eating out C. hang out D. doing DIY 3. They detest............... so early in the morning . A. getting up B. get up C. to get up D. gets up 4.These days a lot of children prefer ............... to playing outside A. staying indoors B. watch TV C. playing football D. read books 5. I found many science books . It's right............... A. in B. to C. up D. for 6. That movie is............... to me . I don't want to watch it again . A. bore B. boring C. bored D. bores 7. Playing computer games too much may have harmful effects............... both our minds and bodies . A. for B. to C. on D. with 8. Why do you want to ban me............... using the smart phone ? A. to B. for C. from D. in

2
3 tháng 9 2021

Choose the best option to complete each sentence 1. My mother doesn't mind............... up me from school every day . A. pick B. picks C. to pick D. picking 2. To many people , the shopping mall is one of the top destinations to see friends and............... . A. walking B. eating out C. hang out D. doing DIY 3. They detest............... so early in the morning . A. getting up B. get up C. to get up D. gets up 4.These days a lot of children prefer ............... to playing outside A. staying indoors B. watch TV C. playing football D. read books 5. I found many science books . It's right............... A. in B. to C. up D. for 6. That movie is...............  to me . I don't want to watch it again . A. bore B. boring C. bored D. bores 7. Playing computer games too much may have harmful effects............... both our minds and bodies . A. for B. to C. on D. with 8. Why do you want to ban me............... using the smart phone ? A. to B. for C. from D. in

3 tháng 9 2021

Choose the best option to complete each sentence 1. My mother doesn't mind............... up me from school every day . A. pick B. picks C. to pick D. picking 2. To many people , the shopping mall is one of the top destinations to see friends and............... . A. walking B. eating out C. hang out D. doing DIY 3. They detest............... so early in the morning . A. getting up B. get up C. to get up D. gets up 4.These days a lot of children prefer ............... to playing outside A. staying indoors B. watch TV C. playing football D. read books 5. I found many science books . It's right............... A. in B. to C. up D. for 6. That movie is............... to me . I don't want to watch it again . A. bore B. boring C. bored D. bores 7. Playing computer games too much may have harmful effects............... both our minds and bodies . A. for B. to C. on D. with 8. Why do you want to ban me............... using the smart phone ? A. to B. for C. from D. in