Scientists _______ a lot of experiments on animals, hoping to find and effective

Scientists _______ a lot of experiments on animals, hoping to find and effective

题型:不详难度:来源:
Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.
A.carried onB.carried outC.carried awayD.carried off

答案
B
解析
本题考查动词短语辨析。carry on表示“进行、继续”;carry out表示“执行、贯彻”; carry off表示“夺得”某种奖赏。
举一反三
I firmly believe, as long as I      great efforts, my dream will come true sooner or later.
A.spendB.spareC.shareD.make

题型:不详难度:| 查看答案
Looking out of the window, I saw the leaves        by the wind and whirled into the air.
A.ended upB.picked upC.gone upD.kept up

题型:不详难度:| 查看答案
I don’t know how it ___________ that our car was bumped from behind.
A.let outB.gave outC.got aboutD.came about

题型:不详难度:| 查看答案
Adolescents are warned not to ____________ their pimples in case they get scars.
A.risk squeezingB.attempt squeezing
C.tended to squeezeD.encourage to squeezing

题型:不详难度:| 查看答案
Experts say it is an international trend to __________ MP2.5 to check air quality.
A.adaptB.attachC.adoptD.adjust

题型:不详难度:| 查看答案
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