我国实行的人民民主专政的国体和人民代表大会制度的政体是人民奋斗成果和历史的选择，它们

经常正，反转及频繁启动的电动机，宜于热继电器来保护。

眼科影像的常规检查不包括()

A．X平片

B．超声波检查

C．DSA

D．CT

E．MRI

加工焊件V形坡口的方法中不包括（）。

A.剪切

B.氧气切割

C.刨边

D.车削

以环境因素的形成过程及其与人类活动的关系为标准，行政环境可以分为

A．宏观行政环境与微观行政环境

B．自然行政环境与人造行政环境

C．传统行政环境与现代行政环境

D．经济环境与文化环境

Speaker A: Did you hear about those people who got hurt when going mountain climbing I think they shouldn’t allow people to go mountain climbing. It’s too dangerous.
Speaker B: （）。

A. I couldn’t agree more. I can’t understand why anyone wants to get to the top of a mountain.

B. I couldn’t agree less. Mountain climbing is actually more dangerous than surfing.

C. I’m sorry to hear that. Where did you get the news

D. No, I have decided not to go mountain climbing with my friends next month.