问题
单项选择题
显示（）手信号的时，待列车头部越过显示信号地点后，才允许收回信号。
A、发车和调车
B、引导和调车
C、引导和停车
D、发车和引导
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
显示（）手信号的时，待列车头部越过显示信号地点后，才允许收回信号。
A、发车和调车
B、引导和调车
C、引导和停车
D、发车和引导
参考答案：B
| 完形填空。 | ||||
| Food is important. Everyone needs to 1 well if he or she wants to have a strong body. Our minds also need a kind of food. This kind of food is 2 . We begin to get knowledge even when we are young. Small children are 3 in everything around them. They learn 4 while they are watching and listening. When they are getting older they begin to 5 story books, science books..., anything they like. When they find something new, they have to ask questions and 6 to find out the answers. What is the best 7 to get knowledge? If we learn 8 ourselves, we will get the most knowledge. If we are 9 getting answers from others and don't ask why, we will never learn more and understand 10 . | ||||
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