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【题目】People are often at a loss when frequently seeing smog level predictions ________ each other in different official forecasts.

A. contradict B. acknowledge

C. allocate D. circulate

【答案】A

【解析】考查动词。A. contradict反驳,与…矛盾;B. acknowledge承认C. allocate分配;D. circulate循环句意:当频繁地看到雾霾水平预测上不同的官方预报互相矛盾时,人们经常不知所措故选A。

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