根据句意和所给首字母提示完成单词。

1.There are two l     in our city. 

2.Our classroom is next to the science l    . 

3.The d     hall is behind our teaching building. 

4.-W     are Lucy and Lily? 

-They are in the bedroom.

5.Is there a c     room in your science building? 

元气耗损和功能减退，脏腑功能低下，抗病能力下降的病机是：（ ）

A．气虚

B．气脱

C．血虚

D．津亏

E．气陷