题目内容
【题目】The dam was not strong enough to __________ thefloods.
A. hold back
B. hold up
C. hold on
D. hold out
【答案】A
【解析】句意:大坝不够坚固,阻挡不住洪水。hold back“阻拦. 阻挡”,符合句意。hold up“延迟. 阻碍”;hold on“(打电话用语)别挂断,等一下”;hold out“坚持,维持”。
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