老师的批评若与事实有出入时,学生应该怎样做才合乎校园礼仪()
A. 学生等老师讲过之后平心静气地加以解释
B. 事后寻找适当的场合、时机加以说明
C. 在课下散布对老师的不满情绪,发泄无礼的言辞
电动间歇润滑泵的自动润滑间歇时间和每次泵油量可根据()要求进行调整。
A. 润滑
B. 冷却
C. 排屑
D. 其它
紧急电源运行在电梯开始按此模式运行前,其他电梯()先到达预先设定的楼层。
A. 可
B. 不可
C. 必须
D. 不须
Why are most break bulk vessels built with the transverse framing system rather than the longitudinal system? ()
A. The transverse system is more resistant to hog and sag stresses
B. The numerous longitudinal frames cause excessive broken stowage
C. The transverse system provides better support to the varying cargo densities on a break bulk vessel
D. The deep web frames interfere with the stowage of break bulk cargo