当高处为15米至30米时,坠落半径为()
A.3米
B.4米
C.5米
D.6米
参考答案:C
---What a long queue!
--- Yeah.We ________________ up in the past few hours for tickets back home.
A.queued
B.have queued
C.are queuing
D.have been queuing
胎盘早剥并发DIC的诊断依据,不包括()
A. * * 出血不凝
B.血小板<100×109/L
C.凝血酶原的时间延长
D.纤维蛋白原2g/L
E.胎儿窘迫