----- Do you have a camera?

---- No. But my farther has____ . He just bought ____a week ago.

A．one; one

B．it; it

C．one; it

D．it; one

临产的主要标志是（）.

A.不规则宫缩

B.见红

C.规律性宫缩， * * 流血

D.规律性宫缩，宫颈口扩张

E.规律性宫缩渐强+宫口扩张+先露下降