题目内容

恶劣气象条件、噪声、振动、电磁辐射等职业危害因素容易引起各种职业病。下列物理因素,可造成职业性白内障的是()。

A. 红外线
B. 紫外线
C. 激光

查看答案
更多问题

极限状态方程

下面()电气设备不是安装在司机室的。

A. 控制柜
B. 雨刷装置
C. 空调柜
D. 综合柜

什么是RTU?安装的RTU应考虑哪些方面的内容?

The seller was trying to sign a substantial order()

A. that is made with certain conditions.
B. that you have finalized the delivery dates.
C. then he could get a large discount.
D. to be more flexible over terms of payment.

答案查题题库