After two hours they stopped ____a rest. [ ]
A. having
B. have
C. to have
D. had
答案:C
我国《公司法》确立的设立公司的原则是()。
A.核准主义原则
B.准则主义
C.准则主义和核准主义相结合原则
D.特许主义原则
导线在不同的平面上曲折时,在凸角的两面上应装设()个瓷瓶。
A.1
B.2
C.3
D.4