哪种制动方式列车的受电弓会自动落弓？（）A、电阻制动B、快速制_爱下问搜题

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问题单项选择题

哪种制动方式列车的受电弓会自动落弓？（）

A、电阻制动

B、快速制动

C、紧急制动

D、空气制动

答案

参考答案：C

阅读理解

阅读理解。

My family and I have ridden bikes around the island several times. My friends often ask me questions
about biking with their families. I'm sorry to learn that some of them don't really enjoy biking or get hurt
on the road because they don't prepare well. Here I want to share some things that I think are important
before you start off:

1. Get a bike of the right size for everyone in your family.
2. Check every part of your bike carefully.
3. Lear to fix some easy bike problems.
4. Check the traffic and weather news.
5. Pack maps, warm clothes, raincoats, snacks and enough water.

1. What is the writer talking about?

A. How to fix a bike on the road.
B. How to save money on a bike ride.
C. Things to do for a safe and happy bike ride.
D. Things to remember when you get hurt on the road.

2. Which is said in the reading?

A. Biking is good for health.
B. More and more people go to work by bike.
C. Biking around the island is getting popular.
D. The size of the bike is important for biking.

判断题

花园式屋顶绿化的建筑静荷载应不小于350kg/m²。