在道路交通系统的基本要素中，( )是系统的核心，其他因素必须通过人才能起作用。 A
题型：单项选择题
问题：
在道路交通系统的基本要素中，( )是系统的核心，其他因素必须通过人才能起作用。
A．驾驶人
B．城市道路
C．机动车
D．管理设施
题型：单项选择题
阅读理解。
As we know, Chongqing has changed a lot. Most of the people feel much safer now. More and more
trees are being planted in the city. And every day you can see many old people play sports everywhere.
The change makes the people in the city live a happy life. The small survey below is from the people who
live in Chongqing. One hundred persons were chosen to answer the questions last week.
1. From the survey, _____ of the people in Chongqing care about health.
A. 41%
B. 80%
C. 39%
D. 52%
2. Most people think working in Chongqing is _____.
A. bad
B. good
C. hard
D. sad
3. From the survey, we know most people want to live _____.
A. in a busier place
B. in a quieter place
C. in a greener place
D. on the mountain
4. According to the passage and the survey, we know that _____.
A. most people plan to change their living places
B. in Chongqing all the people have a lot of food
C. the people in Chongqing don't like planting trees
D. the change in Chongqing makes people enjoy living there