凝汽器真空测量系统的阀门，宜采用阀门是（）。
A.外螺纹截止阀
B.波纹管截止阀
C.球阀
参考答案：B
_________ when we Chinese people must depend on others.
A．The days gone are forever
B．Are the days gone forever
C．Gone forever are the days
D．Forever go the days
翻译
1．虽然他比我高，但是我比他强壮。
Though he is _____than me, I`m_____athletic than him.
2．人人为这个好消息而激动。
Everyone was ____ ______the good news.
3．一个健康的生活方式使她更加幸福。
A_____ lifestyle makes her_____.
4． 6加3等于9。
If you _____3 ____6 you will get 9.
5．火车上有太多的旅客。
There are ____ ___passengers on the train.
