题目内容
Until the start of the Industrial Revolution, mankind was poor, hungry, and constantly at the _______ of disease and natural disasters.
A.power B.limit C.control D.mercy
D
考查词组辨析。题意:直到工业革命时,人类都很贫穷、饥饿,而且一直处于疾病和自然灾难的摆布之下。at the mercy of “任由……的摆布”。
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