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(教材课文原文){A. By; B. In; C. Until} 2050, the world's population {A. projected; B

(教材课文原文)

{A. By; B. In; C. Until} 2050, the world's population {A. projected; B. is projected; C. has been projected} to rise to 9 billion from just over 7 billion currently. Proponents of genetically modified foods say they are safe and can boost harvests {A. even though; B. even; C. though} in bad conditions by protecting against pests, weeds and drought. This, they argue, will be essential to meeting the needs of a booming population in decades to come and avoiding starvation.

{A. Furthermore; B. Moreover; C. However} Doug Gurian-Sherman, senior scientist for the food and environment program at the Union of Concerned Scientists, an advocacy group, said genetic engineering for insect resistance has provided only a modest increase in yields since the 1990s and drought-resistant strains have only {A. modestly; B. modest; C. moderate} reduced losses from drought.

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更多“(教材课文原文){A. By; B. In; C. Until} 2050, the world's population {A. projected; B”相关的问题

第1题

听力原文:Weren't you going to ask Mike about Friday?(A) What's he doing until then?(B) Tha

听力原文:Weren't you going to ask Mike about Friday?

(A) What's he doing until then?

(B) That's too late in the week.

(C) I did. He said Friday's fine.

(21)

A.

B.

C.

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第2题

听力原文:Where's the nearest drugstore?(A) There's one across the street.(B) It's on your

听力原文:Where's the nearest drugstore?

(A) There's one across the street.

(B) It's on your desk, I think.

(C) Until eleven, most of the time.

(11)

A.

B.

C.

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第3题

听力原文:She' s the new intern in the sales department, right?(A)The sale will go on until

听力原文:She' s the new intern in the sales department, right?

(A) The sale will go on until this weekend.

(B) They are hiring interns now.

(C) No, in the marketing department.

(17)

A.

B.

C.

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第4题

听力原文:Paul's birthday is Monday.(A) No, it's been postponed until next year.(B) Not if

听力原文:Paul's birthday is Monday.

(A) No, it's been postponed until next year.

(B) Not if we sell it first.

(C) Is it? We should do something for him,

(14)

A.

B.

C.

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第5题

If we want to feed the world's population in 2050, our food production needs ______.A.to i

If we want to feed the world's population in 2050, our food production needs ______.

A.to increase by 30 percent

B.an increase of 300 percent

C.to increase to 3 billion tons per year

D.an increase of three times

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第6题

听力原文:Isn't the Public Library open in the evening?(A) It's a public performance.(B) No

听力原文:Isn't the Public Library open in the evening?

(A) It's a public performance.

(B) No, another day perhaps.

(C) Yes, until 8 p.m.

(24)

A.

B.

C.

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第7题

听力原文:Do you know why the flight is delayed?(A) It's delayed for two hours, until 8 o'c

听力原文:Do you know why the flight is delayed?

(A) It's delayed for two hours, until 8 o'clock.

(B) Yeah, it's due to mechanical problems.

(C) The flight goes to Houston, then Seattle.

(23)

A.

B.

C.

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第8题

听力原文:Can't Mrs. Brown wait until tomorrow to get that package?(A) Actually, it's today

听力原文:Can't Mrs. Brown wait until tomorrow to get that package?

(A) Actually, it's today.

(B) She hasn't packed yet.

(C) No, she needs it right away.

(33)

A.

B.

C.

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第9题

听力原文:I won't have time to take care of this today.(A) No, I won't, not until later on.

听力原文:I won't have time to take care of this today.

(A) No, I won't, not until later on.

(B) That's okay, I don't need it until tomorrow.

(C) Thank you, you take care, too.

(38)

A.

B.

C.

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