单选题：They _____ the work in spite of the extremely difficult cond

题目内容：

They _____ the work in spite of the extremely difficult conditions. A． carded on
B． carried off
C． carried out
D． carded forward

参考答案：

答案解析：

答案：__________

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Lately you've been heating a lot of auto companies talking about safety. And at

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The most suitable title for this passage would be _____.A) How to Save Money on

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