【简答题】7 液压传动的介质污染原因主要来自哪几个方面?应该怎样控制介质的污染?
【单选题】-How do you like the film? -__________. [ ]
B.
The people and the music
【单选题】---How do you like the blue T-shirt? ---OK, but do you have a ______one in blue? I can’t afford the price.
【单选题】海因里希事故因果连锁理论认为,中断事故连锁的进程,就可避免事故的发生。根据这一原理,企业安全生产工作应以( )为中心。
【多选题】三相异步电动机的三种送电方式如图所示,其中,( )使电动机的旋转方向相反。【图片】
【单选题】—Do you like this T-shirt? —No, I don’t. — ? —Oh, it is a nice T-shirt. I like it.
B.
What color do you want?
C.
Do you have a T-shirt?