（）是指下游很近距离内有居民或重要设施，且坝体高、势能大的尾

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问题单项选择题

（）是指下游很近距离内有居民或重要设施，且坝体高、势能大的尾矿库。这样的尾矿库隐患重、风险大、危害严重，是尾矿库安全管理中的重中之重。

A、山谷库

B、头顶库

C、傍山库

D、平地库

答案

参考答案：B

补全对话，情景问答

通读对话，选择可以填入相应空白处的五个答案。

A：Tom! It's eight o'clock. 1

B：OK! Could you find my shoes for me, Mom?

A：They are in the box under the desk.

B： 2

A：It's time for breakfast. There are three eggs and some milk on the table.

B：Sorry, Mom. 3 Could you put them in my school bag?

A：Why? 4

B：I'm going to school. I'm late.

A： 5

B：Oh, it's Saturday. I don't go to school on Saturday.

A. Thank you, Mom.

B. What are you doing?

C. I'm going to be late for school.

D. What day it is today?

E. It's time to get up.

F. Where are you going?

1._____ 2._____ 3._____ 4._____ 5._____

单项选择题

螺内酯：

A．作用部位在近曲和远曲小管
B．可引起低血钾
C．竞争性对抗醛固酮的作用
D．对切除肾上腺的动物仍有利尿作用
E．利尿作用强大迅速