为减少城市污水处理厂对城市环境的影响，选择城市污水处理厂位置_爱下问搜题

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问题单项选择题

为减少城市污水处理厂对城市环境的影响，选择城市污水处理厂位置时应考虑城市的风向，一般应选择( )。

A．夏季最大风向频率的下风侧

B．夏季最大风向频率的上风侧

C．夏季最小风向频率的下风侧

D．夏季最小风向频率的上风侧

答案

参考答案：D

填空题

用方框内所给词的适当形式完成短文。

always, animal, home, they, can't, parent, stay, well, run, kind, best

     Many people like 1.           . Children like animals 2.           . Usually we can only see dogs, cats, ducks or
chickens around us. We 3.            see other animals such as elephants, tigers, pandas or monkeys. On Sunday, 4.           often take 5.            children to the zoo. How happy the children are!They 6.            from one place
to another. They give animals all 7.            of good food to eat. They 8.            there one hour after another.
They don't want to go 9.           . Children 10.            have a good time in the zoo.

问答题简答题

菌丝的主要变态类型有那些，试简述之？