下列何项属正治法则（）
A.标本兼治
B.塞因塞用
C.寒者热之
D.因人制宜
E.寒因寒用
参考答案：C
闸阀主要由阀体、阀盖或支架、阀杆、阀杆螺母、闸板、阀座、填料函、密封填料、填料压盖及传动装置等组成。
- How do I get to the cinema? -（）
A.It's very far.
B.Yes, there is a cinema near here.
C.It's well known.
D.Go down this street and turn left
