Some people’s lack of basic morals is turning our society into one ______ those in need will be unable to expect help from others.

A．which

B．what

C．where

D．that

预防子宫破裂正确的是（）

A.有剖宫产史不试产

B.有剖宫产史可采用肌注催产素加速分娩

C.子宫下段剖宫产后再孕 * * 分娩时应缩短第二产程

D.剖腹产史再孕臀位应作外回转术

E.纠正胎位异常