ZD(J)9-A220/2.5K型电动转辙机的动作杆动程为()。
A.150mm±2mm
B.170mm±2mm
C.190mm±2mm
D.220mm±2mm
参考答案:D
建筑工程施工前,建设单位应当书面通知被监理的建筑施工企业的内容包括()。
A、委托的工程监理单位
B、监理的内容
C、委托监理的费用
D、监理的权限
Lots of people are wondering___________________________.
A.that China will win the first place in the next Olympic Games
B.what is wrong with the missing plane
C.why is the South Korean drama Man From the Stars so popular in China
D.where can we move if there is too much pollution on Earth