若在柱的搭接位置上已经加密箍筋,那么,只需满足搭接长度要求,下柱钢筋可直接伸入上柱。( )
参考答案:错
The arrival of the European settlers had a great on the life of the Native Americans.
A.fault
B.change
C.effect
D.result.
水平井、斜井通井,当通井规下至45°拐弯处后,下放速度要小于()。
A、0.2m/s
B、0.3m/s
C、0.4m/s
D、0.5m/s