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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】对单线地下区间,当无构筑物或设备时,隧道结构与设备限界之间的距离不应小于( ); 当有构筑物或设备时,设备限界与构筑物或设备之间的安全间隙不应小于( )。
A.
100mm、50mm
B.
140mm、90mm
C.
120mm、70mm
D.
150mm、100mm
【单选题】E When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia, the summer it all happened. I was a second grader, but my best friend Stephanie was only in the fi...
A.
To introduce Stephanie to her.
B.
To prevent her from seeing his painting.
C.
To put the materials back in the yard.
D.
To show his artwork to her.
【单选题】临时变电所安装位置为不影响行车和行人应留有不小于（）毫米的安全间隙并安设防护栏，设置高压警示标志、悬挂与实际相符的供电系统图、防火器材等必须齐全。
A.
500
B.
600
C.
700
D.
800