皮皮学，免费搜题
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【简答题】
简述闭塞的定义和城市轨道交通常用的闭塞方式。
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反馈参考答案：
举一反三
【单选题】肛管
A.
肛管下段的纵形粘膜皱襞称肛瓣
B.
肛柱下端的半月形粘膜皱襞称肛窦
C.
齿状线是皮肤和粘膜的分界线
D.
内痔在齿状线以下，外痔在肛门以下
E.
肛门外括约肌协助排便
【单选题】听力原文：M: Excuse me. Where do I check in for British Airways to London? I can't find the right check-in counter. W: You should go to Counter 28 on the left-hand side, Sir. It's just next to Air France. ...
A.
The Air France Counter is on the right side.
B.
There is a long queue at the Air France Counter.
C.
The British Airways counter is Counter 28.
D.
The British Airways counter is next to Counter 28.
【简答题】第下面一材料，回答第1-4题。 1. Where is the finish line? A. Outside London. B. Near Buckingham Palace. C. At Greenwich. 2. What was last year’s record time? A. 2 hours 17 minutes 16 seconds. B. 2 hours 22 minutes...
【简答题】III. 阅读理解（16分） Every city in the world has taxis to take tourists to interesting places. London is the only city in the world where taking a taxi is an interesting experience for tourists. This is par...
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