题目内容

Without it the night would be extremely cold.

A. 对
B. 错

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The summer would be extremely hot without it.

A. 对
B. 错

Greenhouse gases are part of the atmosphere.

A. 对
B. 错

程序printf("%.Lf",123.45);的输出结果是()。

程序printf("%5.Lf",123.45);的输出结果是()。

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