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【单选题】

安装在易受震动场所的雨水管道使用()

A.
钢管
B.
铸铁管
C.
塑料管
D.
波纹管
题目标签:震动雨水管水管
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参考解析:
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【单选题】埋设给水管、雨水管、污水管管线遇到矛盾时,正确的处理方法是( )。

A.
雨水管避让给水管和污水管
B.
给水管避让雨水管和污水管
C.
污水管避让给水管和雨水管
D.
雨水管和污水管避让给水管

【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s surface, a visitor might assume that the canyon had been caused by some ancient convulsion...

A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s surface
D.
it has caused many visitors to injure themselves