Of the making of good books there is no_爱下问搜题

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问题选择题

Of the making of good books there is no end; neither ___ any end to their influence man's lives. [ ]

A. there is

B. there are

C. is there

D. are there

答案

答案：C

选择题

—Will people live to be 200 years old?

— . [ ]

A. No,they aren't

B. No,they won't

C. No,they don't

D. No,they can't

单项选择题

离心泵按输送介质不同分为（）。

A、水泵、油泵、耐磨蚀泵

B、离心泵和旋涡泵

C、热水泵和冷水泵

D、蒸汽往复泵和离心泵