输水管道和配水管网隆起点和平直段的必要位置上,应装设()。
A、排气阀
B、泄水阀
C、检修阀
D、切换阀
参考答案:A
下面对话的空白处,填入适当的短语或句子,使对话意思完整、通顺。
A:Hello, John. The winter holiday is coming. 小题1: ?
B: I’m going to stay at home and have a good rest. What about you?
A: I’m going to Beijing with my parents.
B: 小题2:_________________________. Beijing is the capital of our country. There are many nice things to do there.
A: That’s right. I’m going to visit the Great Wall, the Palace Museum and do some shopping.
B: 小题3: ?
A: We will take the plane. And I think flying in the air must be of great fun.
B: Yes, it is very wonderful. Then will you take your pet Mimi with you?
B: No. That’s why I came. 小题4: ?
A: No problem.
B: 小题5: __________________________________
《国务院关于加快发展现代保险服务业的若干意见》提出保险业发展的目标,到2020年保险密度达到(),保险深度达到()。
A.2500元;4%
B.3000元;4.5%
C.3500元;5%
D.4000元;5.5%