社会调整的手段是?()
A、体系
B、逻辑
C、规则
D、框架
参考答案:C
–How often do you go to see your parents?
--Not very often, I’m afraid. But I manage to see them .
A.each other week
B.each two weeks
C.every other week
D.every another week.
焊接电弧的紫外线对纤维的破坏能力很强,其中以()为最甚。
A.化纤产品
B.麻织品
C.棉织品
D.绦纶品