住宅专项维修资金管理实行( )的原则。
A.专户存储
B.专款专用
C.所有权人决策
D.企业管理
E.政府监督
参考答案:A,B,C,E
If you don't have anything nice to say to other people, don't say .
A.anything
B.something
C.nothing
D.everything
尿生殖嵴由外侧的()和内侧的()组成。