When a rue ______ at the National Exhibition in London at least ten priceless paintings w
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When a rue ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
A．broke off
B．broke out
C．broke down
D．broke up
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正确答案：B
解析：本题考查动词短语辨析。这四个动词短语的意思分别为：break off“中止，中断”；break out“①爆发，突然出现②使逃脱，使逃走”；break down“损坏”；break up“①打碎，粉碎②终止，结束”。只有选项B符合题意。