题目内容
16.Many medical scientists are racing time to find a cure for H1N1as soon as possible.( )A. | on | B. | against | C. | for | D. | in |
分析 许多医学科学家们正在争分夺秒地寻找治疗h1n1的方法.
解答 答案:B
on在…上面;against和…比赛/对抗;in在…内;for为了. 此处,许多医学科学家们正在争分夺秒地寻找治疗h1n1的方法.争分夺秒也就是要与时间赛跑(against the time).故选B.
点评 考查介词用法.注意各个介词词义间的区别.
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