【題目】When ______ to danger and conflict, men tend to increase blood pressure, feeling nervous or anxious.

A. expose B. exposed

C. to expose D. exposing

【答案】B

【解析】

考查非謂語動詞。句意:當(dāng)面臨危險和爭端的時候，人往往會血壓增高，感到焦慮和緊張。分析句子可知，expose在句中作非謂語，Men與expose構(gòu)成被動關(guān)系，所以使用過去分詞表示，故選B。

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