Just then we had an important piece of work in hand, the generator that supplies

游客2025-07-28 15

问题 Just then we had an important piece of work in hand, the generator that supplies the power to the whole works broke ______ .

选项 A、out
B、up
C、off
D、down

答案 D

解析 broke down意为“(指机器)损坏，发生故障”。 [A] broke out意为“突然发生，爆发”； [B] broke up意为“分开，分解”； [C] broke off意为“中止，中断”。

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