2. 外语
  3. The batteries can be recharged when they run ______ .

The batteries can be recharged when they run ______ .

admin2011-06-29  31
问题 The batteries can be recharged when they run ______ .
选项 A、over
B、down
C、out
D、along
答案C
解析 run over溢出。run down撞倒。run out用完，耗尽。run along走开，离开。
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