怎样检查推力盘的不平衡?
参考答案:
用塞尺检查薄刃平尺与推力盘间的间隙。
As a Senior 3 student,if you want to get a good result,it is important to a good state
of mind for the coming entrance examination.
A.keep up
B.carry out
C.keep off
D.keep out
对于单钩钩身的验算截面应该为()
A.钩身的垂直截面
B.钩身的水平截面
C.钩身的45度截面
D.A和C