【单选题】question 2 is based on the video you have just heard.
【单选题】在制动保压位时,120控制阀上眼泪孔f4的作用是()。
C.
当副风缸及其管系轻微漏泄时,制动管向副风缸补充压力空气,防止保压位列车制动机自然缓解
【多选题】Choose the problems the 'paradise' are facing based on the video
【多选题】Based on the video, what are the problems the working women in South Korea are still facing?
A.
They have difficulties in taking care of children in elementary school.
B.
Some women feel a strong sense of guilt.
C.
They are less well paid although they have the same education with men.
D.
Their status has been greatly improved in labor market.
【单选题】正常施工时间应于运行图首列车开出分钟前结束并出清线路,在有工程车返回的线路上施工时,有关作业原则上在运行图首列车开出分钟前结束,并出清线路。()
【单选题】How does scorching weather affect people based on the video?
A.
They can not do outdoor activities.
B.
They can not go shopping.
C.
It is hard for them to breathe.
D.
It is hard for them to do exercise.
【简答题】简述清热药的分类,及每一类清热药的含义(功效+主治)。
【判断题】正常施工时间应于运行图首列车开出45分钟前结束并出清线路。()
【单选题】正常施工时间应于运行图首列车开出 分钟前结束并出清线路 。