通过放水试验可以查明采矿条件下地下水的补给来源、补给通道、补

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问题判断题

通过放水试验可以查明采矿条件下地下水的补给来源、补给通道、补给量。放水试验具有直观、实用、可靠性高和成本低的特点，在水文条件复杂的矿区普通受欢迎。

答案

参考答案：对

多项选择题

双波长方式分析的优点有（）

A.能消除噪音干扰

B.能减少散色光的影响

C.能减少样品本身光吸收的干扰

D.能提高检测速度

E.能对电源波动有补偿效果

填空题

用所给词的适当形式填空。

1. He _________ (depend) on his uncle for his study after his father's death (~Et).

2. There is no _________ (means) of getting there.

3. In Japan: there are three most popular _________ (way) of _________ (get) to school.

4. There is a park in the_________ (north) part of the town.

5. The Great Wall lies in the _________ (east) of China.

6. There are many _________ (child) in the park. Some are singing. Some are dancing.

_________ (other) are flying kites.

7. A number of students _________ (get) to school.