We are glad that you have been made ____captain of the school basketball team______ second time.

A．a; a

B．the; the

C．不填；a

D．不填； the

胎盘早剥的概念，正确的是

A．胎盘早剥多发生于妊娠28周后

B．前置胎盘在胎儿娩出后从子宫壁剥离

C．正常位置胎盘在胎儿娩出前从子宫壁剥离

D．分娩期不易发生胎盘早剥

E．胎盘早剥对孕妇无影响