城市供水实行分类水价，根据（）可分为居民生活用水、工业用水、

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问题单项选择题

城市供水实行分类水价，根据（）可分为居民生活用水、工业用水、行政事业用水、经营服务用水、特种用水等五类。

A.用水量

B.用水范围

C.使用性质

D.用户类别

答案

参考答案：C

改错题

短文改错。

I am good at all the subjects，and always ready help others.At school I get along well

with my classmates.Therefore，I have a problem that troubles myself all the time.It’s

the relationship among my deskmate and me.He is a hard－working student，who

keeps school rule well.But he’s a person with few words.What’s more，he got angry

easily.I don’t know what to deal with him.Maybe it’s why we’ve seldom sat down to

exchange our feelings or thoughts.I value our friendship.I hope we can know more

about with each other and understand each other better.I do hope we will be close

to each other than before.

问答题简答题

管道光缆的人工敷设步骤：