题目内容

生物学中最小的分类单位是()。)

A. 品种
B. 品系
C. 种
D. 属

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输电工作票需要在工作结束4个工作日内归档。

A. 正确
B. 错误

液体流动的平均流速越大,则其此时的雷诺数值()。

A. 越大
B. 越小
C. 不变
D. 无法确定

一个企业进行人力资源成本核算有什么意义?

When towing in an open seaway,it is important to use a towing line().

A. made only of wire rope,due to possible weather conditions
B. that will have the tow on a crest while your vessel is in a trough
C. that will have the tow on a crest while your vessel is on a crest
D. with little dip to gain maximum control of the tow

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