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Chọn đáp án đúng:Vaccinating many people against SARS-CoV-2 could stall infection rates even among unvaccinated children in the same community. Last December, Israel launched one of the fastest vaccination schemes in the world, reaching 50% of the population in 9 weeks. (16) ________ only people aged 16 and over were eligible for the jab.To test the ripple effects of widespread vaccination, Tal Patalon at Maccabi Healthcare Services in Tel Aviv-Yafo, Israel, Roy Kishony at the Technion —...
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Chọn đáp án đúng:

Vaccinating many people against SARS-CoV-2 could stall infection rates even among unvaccinated children in the same community. Last December, Israel launched one of the fastest vaccination schemes in the world, reaching 50% of the population in 9 weeks. (16) ________ only people aged 16 and over were eligible for the jab.
To test the ripple effects of widespread vaccination, Tal Patalon at Maccabi Healthcare Services in Tel Aviv-Yafo, Israel, Roy Kishony at the Technion — Israel Institute of Technology in Haifa and their colleagues analysed COVID-19 vaccinations and test results (17) ________ between January and March 2021 for people in 223 Israeli communities. In (18) ________ community, the authors examined the relationship between the vaccination rate in adults over three 3-week intervals and the rate of positive results for a COVID-19 test in children 35 days later.
The authors found that, in the weeks after older people had received the Pfizer–BioNTech vaccine, the infection risk among children under 16 dropped proportionally to the percentage of adults (19) ________ had been vaccinated. The authors warn that their results might be influenced by children who had previously been infected, even though the study included communities with low (20) ________ rates. The findings have not yet been peer reviewed.
Question 16: A. Because    B. Although    C. Before       D. However
Question 17: A. recorded    B. intended    C. depended    D. afforded
Question 18: A. neither       B. any            C. each            D. some
Question 19: A. which         B. who           C. where          D. when
Question 20: A. infection   B. transmission   C. defilement   D. insanitation

Chọn đáp án đúng:

33. He and his wife took the ____________ decision to switch off their son’s life support machine.
A. painful       B. hurt       C. aching        D. sore
34. The sale will recoup a small portion of the money ____________ from company pension funds by the publisher.
A. burgled       B. thieved        C. stolen      D. robbed
35. These plants produce flowers from __________ spring to late summer.
A. soon      B. beginning       C. starting      D. early
36. The legal arrangements for the sale are a(an) ___________ for negotiation.
A. trouble     B. problem     C. matter     D. issue
37. The death ___________ among the homeless is three times higher than the rest of the population.
A. percentage      B. rate     C. proportion     D. ratio
38. By the end of the seventeenth century the industrial ___________ was much more evident.
A. scene     B. landscape    C. scenery     D. sight
39. The witness tried to give a(an) _____________ description of what she had seen.
A. accurate     B. exact     C. precise     D. correct
40. If they lose their jobs, instead of going on the ____________ they have to leave the country.
A. wage      B. salary     C. pension     D. dole

1
9 tháng 6 2021

Vaccinating many people against SARS-CoV-2 could stall infection rates even among unvaccinated children in the same community. Last December, Israel launched one of the fastest vaccination schemes in the world, reaching 50% of the population in 9 weeks. (16) ________ ,only people aged 16 and over were eligible for the jab.
To test the ripple effects of widespread vaccination, Tal Patalon at Maccabi Healthcare Services in Tel Aviv-Yafo, Israel, Roy Kishony at the Technion — Israel Institute of Technology in Haifa and their colleagues analysed COVID-19 vaccinations and test results (17) ________ between January and March 2021 for people in 223 Israeli communities. In (18) ________ community, the authors examined the relationship between the vaccination rate in adults over three 3-week intervals and the rate of positive results for a COVID-19 test in children 35 days later.
The authors found that, in the weeks after older people had received the Pfizer–BioNTech vaccine, the infection risk among children under 16 dropped proportionally to the percentage of adults (19) ________ had been vaccinated. The authors warn that their results might be influenced by children who had previously been infected, even though the study included communities with low (20) ________ rates. The findings have not yet been peer reviewed.
Question 16: A. Because    B. Although    C. Before       D. However
Question 17: A. recorded    B. intended    C. depended    D. afforded
Question 18: A. neither       B. any            C. each            D. some
Question 19: A. which         B. who           C. where          D. when
Question 20: A. infection   B. transmission   C. defilement   D. insanitation

Chọn đáp án đúng:

33. He and his wife took the ____________ decision to switch off their son’s life support machine.
A. painful       B. hurt       C. aching        D. sore
34. The sale will recoup a small portion of the money ____________ from company pension funds by the publisher.
A. burgled       B. thieved        C. stolen      D. robbed
35. These plants produce flowers from __________ spring to late summer.
A. soon      B. beginning       C. starting      D. early
36. The legal arrangements for the sale are a(an) ___________ for negotiation.
A. trouble     B. problem     C. matter     D. issue
37. The death ___________ among the homeless is three times higher than the rest of the population.
A. percentage      B. rate     C. proportion     D. ratio
38. By the end of the seventeenth century the industrial ___________ was much more evident.
A. scene     B. landscape    C. scenery     D. sight
39. The witness tried to give a(an) _____________ description of what she had seen.
A. accurate     B. exact     C. precise     D. correct
40. If they lose their jobs, instead of going on the ____________ they have to leave the country.
A. wage      B. salary     C. pension     D. dole

16 tháng 11 2018

Kiến thức: Từ trái nghĩa

Giải thích:

vary (v): khác, thay đổi

  A. restrain (v): kiềm chế                             B. remain unstable: giữ không ổn định

  C. fluctuate (v): dao động                             D. stay unchanged: không thay đổi

=> vary >< stay unchanged

Tạm dịch: Tỉ lệ gia tăng dân số giữa các khu vực và các quốc gia cùng một khu vực thay đổi.

Chọn D

Chọn đáp án đúng và giải thích vì sao chọn đáp án đó:7. ............do you study in the library after school? - Once a week. .A. How often B. How far C. How many D. How long8. Many young people enjoy......... community service.C. doing A. do B. to do D. does9. .......is your telephone number?A. When B. Which C. What D. How10. Her birthday is ........Friday, August 20th.A. at В. on С. in D. of11. ......you have a test tomorrow morning?                                                 ...
Đọc tiếp

Chọn đáp án đúng và giải thích vì sao chọn đáp án đó:

7. ............do you study in the library after school? - Once a week. .
A. How often B. How far C. How many D. How long

8. Many young people enjoy......... community service.
C. doing A. do B. to do D. does

9. .......is your telephone number?
A. When B. Which C. What D. How

10. Her birthday is ........Friday, August 20th.
A. at В. on С. in D. of

11. ......you have a test tomorrow morning?                                                                     A. Will B. Do C. Are D. does

12. What's your..... .?                                                                                                       A. birthday B. day of birth C. date of birth D. birth of day

13.Will he be free? -............                                                                                          A. No, he won't B. No, he doesn't C. No, he isn't D. No, he will

14. We will .......... our old friends next Sunday.
A. to meet B. meet C. meeting D. meets

15......... you like a cup of tea?
A. Would B. Will C. What D. does

16. He looks different .......his father.
A. at B. with C. from D. to

 

 

 

 

2

ko cần giải thích dc ko?:')

21 tháng 1 2022

7. ............do you study in the library after school? - Once a week. .
A. How often B. How far C. How many D. How long

8. Many young people enjoy......... community service.
C. doing A. do B. to do D. does

9. .......is your telephone number?
A. When B. Which C. What D. How

10. Her birthday is ........Friday, August 20th.
A. at В. on С. in D. of

11. ......you have a test tomorrow morning?                                                                     A. Will B. Do C. Are D. does

12. What's your..... .?                                                                                                       A. birthday B. day of birth C. date of birth D. birth of day

13.Will he be free? -............                                                                                          A. No, he won't B. No, he doesn't C. No, he isn't D. No, he will

14. We will .......... our old friends next Sunday.
A. to meet B. meet C. meeting D. meets

15......... you like a cup of tea?
A. Would B. Will C. What D. does

16. He looks different .......his father.
A. at B. with C. from D. to

8 tháng 3 2019

Đáp án : D

Vary = thay đổi đa dạng, phong phú. Stay unchanged = duy trì, không thay đổi

21 tháng 3 2019

Đáp án B

Vary (v): khác nhau, thay đổi >< Stay unchanged: giữ nguyên, không thay đổi

Restrain (v): giữ lại, ngăn lại

Remain unstable: luôn không ổn định

Fluctuate (v): biến động, thay đổi

Dịch: Tỷ lệ gia tăng dân số khác nhau giữa các vùng miền và thậm chí giữa các đất nước ở trong cùng một vùng.

26 tháng 1 2019

Đáp án B

vary (v): biến đổi, khác nhau >< B. stay unchanged: không thay đổi.

Các đáp án còn lại:

A. restrain (v): cản trở, kìm nén.

C. remain unstable: không ổn định.

D. fluctuate (v): dao động.

Dịch: Tốc độ tăng trưởng dân số là khác nhau giữa các vùng và thậm chí là giữa các quốc gia trong cùng khu vực.

27 tháng 5 2019

Đáp án D

Giải thích:

Vary: thay đổi

A. remain unstable: không ổn định

B. fiuctuate: dao động

C. restrain: ngăn cản, kìm nén

D. stay unchanged: không thay đổi

Dịch nghĩa: Tỉ lệ tăng dân số khác nhau giữa các vùng và thậm chí là giữa các quốc gia trong cùng một vùng.

19 tháng 9 2019

Đáp án A

19 tháng 2 2017

Đáp án là D.

“vary”: thay đổi, biến đổi
Trái nghĩa là stayed unchanged: giữ nguyên, không đổi gì 

12 tháng 10 2018

Đáp án : D

“vary”(v): thay đổi, biến đổi. Trái nghĩa là “stay unchanged” (giữ nguyên)