与十进制数100等值的二进制数是()。A．10011 B．1100010 C．110

“日清日结法”的实施程序包括①考评与激励;②设定目标;③控制。正确顺序为()

A．③①②

B．①②③

C．③②①

D．②③①

昆钢φ775轧辊为（）材质。

A.钼冷硬球复合

B.铬钼球复合

C.普通冷硬球复合

何为矿产资源储量估算？

Chain suspension ladders on a ship must be replaced by fixed ladders if the required chain suspension ladder（）.

A.has been sent in for repair

B.cannot be supported against a vertical flat surface

C.does not extend to the water when the ship lists 15 degrees

D.is not equipped with vertical guard rails on either side

码垛的十二字原则是什么？