13.Many medical scientists are racing__________time to find a cure for H1N1 as s

13.Many medical scientists are racing__________time to find a cure for H1N1 as s

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13.Many medical scientists are racing__________time to find a cure for H1N1 as soon as possible.
A.onB.againstC.forD.In

答案
B
解析

举一反三

17.--- Mary, I have got a new cell phone number!
--- Oh, hold on. I’ll put it down just___________ .
A.in deedB.in caseC.in timeD.in use

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---Would you like some more beef?
---No, thanks. I’m ______ a diet.
A.forB.toC.onD.in

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29. ______ many people, he prefers classical music to pop.
A.In commonB.In common withC.Out of common withD.Out of common

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22. Careful surveys have showed that audience _______ teachers and studentsare more likely to take seats _______ directed.
A.1ike; thatB.as; thatC.1ike; asD.as; like

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28. Vitamin D helps our bodies make a special chemical, and this special chemical,        _______, affects our brains, making us feel happy.
A.in turnB.in particularC.in returnD.in short

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