题目：
抽水前，应当对（）、（）及井上、井下有关的水文地质点，进行水位（压）、流量观测。必要时，可以另外施工专门钻孔测定大口径群孔的中心水位。
答案：
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参考答案：对
抽水前，应当对（）、（）及井上、井下有关的水文地质点，进行水位（压）、流量观测。必要
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