双胎妊娠分娩期易发生的并发症有

A．产程延长

B．脐带脱垂

C．胎盘早剥

D．胎头交锁

E．以上都不正确

－Do you have a minute? I’ve got something to tell you.

－Ok, ______ you make it short.

A．now that

B．if only

C．so long as

D．every time