根据《母婴保健法》的规定,不属于孕产期保健内容的是()
A.母婴保健指导
B.孕妇、产妇保健
C.胎儿保健
D.男女双方精神病检查
E.新生儿保健
参考答案:D
We ________ here on time but we were caught in a traffic jam.
A.must have arrived
B.could have arrived
C.need have arrived
D.should have arrived
丁坝适应范围较广,在各种类型的河道上()。