An inert gas system is designed to reduce the possibility of tank explosions by().
A. eliminating sparks and fire in the vicinity of cargo tanks
B. removing all hydrocarbon gases from the cargo tanks
C. blanketing cargo tanks with inert foam
D. reducing the oxygen concentration below levels necessary for combustio
查看答案
做真空严密性试验为什么要规定负荷满足要求?为什么要以后5分钟的真空平均值为准?
“电子商务”英文正确写法是()
A. Electron Commerce
B. Electronic Commerce
C. Electronics Commerce
D. Electronic Contract
装设个人保安线时,应先接()端,后接()端,且接触良好、连接可靠。拆个人保安线的顺序与此相反。个人保安线由作业人员负责自行装、拆。
A. 接地
B. 导线
C. 上端
D. 下端
著名心理学家、哈佛大学教授麦克利兰博士是国际上公认的胜任力方法的创始人。()
A. 正确
B. 错误