问答题

My sister told me the performance yesterday evening/last night was not interesting at all.

答案：正确答案：我姐姐告诉我,昨晚的节目一点也没有意思。

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“Cu” means to kick, and “Ju” is a kind of ball in ancient China made of stone.
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答案：错误

单项选择题

以下关于间歇精馏的描述不正确的是( )

A．间歇精馏往往采用填料塔
B．间歇精馏为一非定态过程
C．间歇精馏时全塔均为提馏段,没有精馏段
D．为保持间歇精馏时馏出液组成恒定,其回流比应不断增大。