皮皮学，免费搜题
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【单选题】
关于生活给水箱配管，进水管一般由水箱侧壁接入，其中心距箱顶150～200mm的距离。进水管上通常加装（ ）来控制水箱内水位。A.
浮球阀
B.
截止阀
C.
球阀
D.
止回阀
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