多项选择题
防止或减少降水影响周围环境的技术措施有()
A.采用回灌技术(回灌井点与降水井点的距离不宜小于6m)
B.采用砂沟、砂井回灌
C.减缓降水速度
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单项选择题
A.do B.must C.Wili D.could
A.do
B.must
C.Wili
D.could
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单项选择题
A.equally B.interestingly C.increasingly D.possibly
A.equally
B.interestingly
C.increasingly
D.possibly
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