Câu 30: A childrenB churchC changeD machineCâu 31: A monitorB monthC monkeyD moneyCâu 32:...
Đọc tiếp
| Câu 30: A children | B church | C change | D machine |
| Câu 31: A monitor | B month | C monkey | D money |
| Câu 32: A husband | B hold | C happy | D hour |
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TL
Tuệ Lâm
27 tháng 1 2021
| Câu 30: A children | B church | C change | D machine |
| Câu 31: A monitor | B month | C monkey | D money |
| Câu 32: A husband | B hold | C happy | D hour |
Đúng(1)
LT
Lê Trang
27 tháng 1 2021
| Câu 30: A children | B church | C change | D machine |
| Câu 31: A monitor | B month | C monkey | D money |
| Câu 32: A husband | B hold | C happy | D hour |
Đúng(1)
Những câu hỏi liên quan
KY
7 tháng 8 2021
Q1: Choose the word which has the underlined part pronounced differently from the others. *
A. Children
B. Church
C. Headache
D. Beach
Q2: Choose the word which has the underlined part pronounced differently from the others. *
A. See
B. Salt
C. Small
D. Sugar
Q3: Choose the word which has the underlined part pronounced differently from the others. *
A. Mother
B. Thirteen
C. Father
D. Then
Q4: Choose the words that have the different stress from the others *
A. expensive
B. wonderland
C. favorite
D. driverless
Q5: Choose the words that have the different stress from the others *
A. eco-friendly
B. environment
C. renewable
D. abundantly
Q6: Choose the words that have the different stress from the others *
A. believe
B. avoid
C. prefer
D. happen
Q7: Driverless cars have already ______, and they look so cool. *
A. gone
B. travelled
C. exist
D. existed
Q8: Liz: I am so nervous that I am putting on weight. - Tony: ________ *
A. Wash your hand more
B. Eat less junk food
C. Sleep more
D. Sunbathe less
Q9: We will cut down on the use of natural gas because it is ……………… and harmful to the environment. *
A. plenty
B. limited
C. available
D. abundant
Q10: If I have a jet pack. I will use______to fly anywhere easily. *
A. my
B. mine
C. his
D. their
Q11: I think teleportation is only____. *
A. imagine
B. imaginary
C. imaginable
D. imagining
Q12: Do we need much ________ to park that kind of vehicles? *
A. land
B. ground
C. soil
D. space
Q13: Do you think it will be (an)_______, green way to travel? *
A. convenient
B. inconvenience
C. polluting
D. polluted
Q14: I think in the future cities will be more crowded and the traffic will get ____________. *
A. good
B. well
C. worse
D. worst
Q15: Solar energy is _______ and it can be replaced easily. *
A. new
B. renew
C. renewable
D. non-renewable
Q16: ________ is quite popular in an overcrowded city where you can see people sleeping in a park or under a bridge. *
A. Homeless
B. The homeless
C. Homelessly
D. Homelessness
Q17: Children who_______malnutrition can have a lot of diseases. *
A. suffer from
B. avoid
C. gain
D. obtain
Q18: Is this schoolbag ________? *
A. you
B. your
C. yours
D. them
Q19: Who is going to _______ the Oscar for Best Actor this year?
A. get
B. take
C. win
D. pass
Q20: They spent a huge amount of money on the film; _______, it was not a big success *
A. although
B. however
C. but
D. because
1 tháng 1 2022
\(A=\left(1+3+3^2+3^3\right)+...+3^{117}\left(1+3+3^2+3^3\right)\)
\(=40\left(1+...+3^{117}\right)⋮40\)
với x, y, z > 0.
Mn giúp em với ;-;
HK
Cho \(A=\dfrac{2023^{30}+5}{2023^{31}+5}\) và \(B=\dfrac{2023^{31}+5}{2023^{32}+5}\). So sánh A và B
2
17 tháng 4 2023
Áp dụng tính chất : Nếu \(\dfrac{a}{b}< 1\) thì \(\dfrac{a}{b}< \dfrac{a+n}{b+n}\) ( a; b; n ϵ N , b; n ≠ 0 )
Ta có \(\dfrac{2023^{31}+5}{2023^{32}+5}< 1\)
⇒ \(B=\dfrac{2023^{31}+5}{2023^{32}+5}< \dfrac{2023^{31}+5+2018}{2023^{32}+5+2018}=\dfrac{2023^{31}+2023}{2023^{32}+2023}=\dfrac{2023\left(2023^{30}+1\right)}{2023\left(2023^{31}+1\right)}=\dfrac{2023^{30}+1}{2023^{31}+1}=A\)Vậy A > B
XO
17 tháng 4 2023
Ta có 2023A = \(\dfrac{2023.\left(2023^{30}+5\right)}{2023^{31}+5}=\dfrac{2023^{31}+5.2023}{2023^{31}+5}\)
\(=1+\dfrac{2022.5}{2023^{31}+5}\)
Lại có 2023B = \(\dfrac{2023.\left(2023^{31}+5\right)}{2023^{32}+5}=\dfrac{2023^{32}+2023.5}{2023^{32}+5}\)
\(=1+\dfrac{2022.5}{2023^{32}+5}\)
Dễ thấy 202331 + 5 < 202332 + 5
\(\Leftrightarrow\dfrac{2022.5}{2023^{31}+5}>\dfrac{2022.5}{2023^{32}+5}\)
\(\Leftrightarrow1+\dfrac{2022.5}{2023^{31}+5}>1+\dfrac{2022.5}{2023^{32}>5}\)
\(\Leftrightarrow2023A>2023B\Leftrightarrow A>B\)