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问题 单项选择题

（）是人类得以生存和发展的基础，是社会财富创造的源泉。

A.娱乐

B.学习

C.劳动

D.运动

答案

参考答案：C

解析：

劳动是人类得以生存和发展的基础，是社会财富创造的源泉。

单项选择题

小接地系统发生单相接地故障时，其他两相对地电压升高（）倍。

A、√3

B、√3/3
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单项选择题

Two companies are identical except for their accounting treatment of research and development costs. One company expenses all such costs immediately, while the other company capitalizes a portion of the costs. Compared to the company that capitalizes, the company that expenses immediately will most likely report a lower:（）

A. financial leverage.

B. total asset turnover.

C. cash flow from operations.
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