LGJ-120~150导线应选配的倒装式螺栓耐张线夹,型号为()。
A.NLD-1
B.NLD-2
C.NLD-3
参考答案:C
As is widely acknowledged, a great number of traffic accidents ____ numerous deaths and countless property loss all over the world every year.
A.depend on
B.contribute to
C.result from
D.aim at
产后多长时间胎盘未剥离可行手取胎盘术()
A.24小时
B.12小时
C.1小时
D.30分钟
E.10分钟