通过信号机应设在闭塞分区或（）区间的分界处。A、站间 B、自闭_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

通过信号机应设在闭塞分区或（）区间的分界处。

A、站间

B、自闭

C、所间

D、正线

答案

参考答案：C

单项选择题

遗忘的进程是不均衡的，遗忘发展的规律是（）

A.先快后慢

B.先慢后快

C.先后无差别

D.不快不慢

E.速记速忘

填空题

从下面方框中选择适当的情态动词填空。

can't would may must shall should

1. _____ you be so kind as to keep an eye on my house while I
  am away?
2. — ___ I have a walk with you, Mum?
   — No, you mustn't.
3. All the students _____ obey the school rules.
4. We _____ help others when they are in trouble.
5. He _____ be tired.  He has just begun to work.
6. — ______ he use your bike?
    — Certainly. Here is the key.