判断题

强酸可以制弱酸，但弱酸一定得不到强酸。
正确
错误

答案：错误

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单项选择题

浓水隔板的作用是强化水的紊流,降低浓差极化,防止结垢。（） A. 对 B. 错

To analyze sentence meaning, the basic idea is that a semantic theory consists of two parts: a ( ) and a set of ( ) rules. The former provides the ( ) classification and ( ) information of words. The latter are responsible for combining the ( ) of words together. In order to make the combination appropriate, there are selection restrictions.

答案： (1)
dictionary