题目内容

I have to complete the first reading (assign)____ before the end of this week.

查看答案

搜索结果不匹配？点我反馈

更多问题

Young children are often more (energy)____ than adults.

It is essential that these application forms (sent)____ back as early as possible.

In spite of the heavy rain the workers will try their best to get the goods (deliver)____ on time.

机组由三台机器并联组成,已知各机器的效率分别为0.52、0.75、0.93,输入功率分别为15、22、38kW,则该机组的机械效率为。

A. 0.363
B. 0.685
C. 0.795
D. 0.816