题目内容
7.While the supplies can meet our current demand,they can, ,last a month.( )A. | at command | B. | at length | C. | at random | D. | at best |
分析 虽然供应能满足我们目前的需求,但它们最多可以持续一个月.
解答 答案:D
考查介词短语:A.at command 可以自由使用;B.at length最后;C.at random 任意地;D.at best 至多.本句句意:虽然供应能满足我们目前的需求,但它们最多可以持续一个月.结合选项,将答案带入句中,选D.
点评 考生平时应注意积累相应的单词和短语的用法,解答该类题时,首先要对选项用法有深刻的了解.确定它们各自不同于另外三项的用法,再结合选项,将其带入句中,一般语意逻辑通顺,即为正确答案.

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