参考答案:C
[听力原文] A: I wonder where I can take my girlfriend for dinner after work tonight. B: Have you b第34题:[单选题]峭壁、陡坡的工作场地或人行道上,冰雪、碎石、泥土应经常清理,靠外面一侧应设1050~1200mm高的栏杆,栏杆内侧设( )mm高的侧板。A.180B.150C.120D.210参考答案:A
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