稽留流产(missed abortion)

胚胎或胎儿已死亡滞留在宫腔内尚未自然排出者称为稽留流产。

The girls (were sorry) to (had missed) the singers (when) they (arrived at) the airport.

A:were sorry B:had missed C:when D:arrived at

I apologize ______being late but I missed the bus.

A:to B:by C:for D:of

I apologize ______being late but I missed the bus.

A:to B:by C:for D:of

"I missed the train home last night.""So ______"

A:have I B:I have C:did I D:I did

It is a pity that you have missed the most important contents（　）.

A:lost B:caught C:refused D:rejected