二尖瓣狭窄晚期最常见的并发症是（）

A.充血性右心衰竭

B.急性心律失常

C.亚急性感染性心内膜炎

D.脑血管意外

E.急性肺水肿

It is said that this plan will be ________ by the Department of Education, which will be of great

help to the students in the poor areas.[ ]

A. approved

B. assisted

C. submitted

D. updated