问题
单项选择题
层云的常见云底高度范围为________米。
A．50m-800m
B．100m-1000m
C．50m-500m
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
层云的常见云底高度范围为________米。
A．50m-800m
B．100m-1000m
C．50m-500m
参考答案：A
完形填空 阅读短文，从每题所给选项中选出可以填入空白处的最佳选项（共15分；每空1分，满分15分） When I was young，my father told me that little acts of kindness may give one great happiness. Since then I have always tried to help people in . One hot summer afternoon, I was down the highway to New York when another car suddenly into my lane(车道). My car was in the far right lane，so it ran onto the roadside. As a(n) driver，I moved my car quickly and skillfully back onto the highway without causing any accident. I was with that driver，but I thought that he just did not pay attention to（注意） the lane change, and he did not do that on purpose(故意).The car ran away after cutting me off. Very soon it disappeared from sight. After a while，I came around a curve(弯道) and found the car. The driver was walking along the roadside. He was an elderly man and looked . As there was no telephone nearby and the nearest services were twenty miles away, I decided to and see what the problem was. The man’s car had a flat tire(瘪胎). Although he had another tire，he had nothing to work with. I decided to him. I changed the tire for him and allowed him to sit in my air-conditioned car while I did it. Fifteen minutes later，I the work. I was hot and tired，but I really felt after an act of kindness to the man who had earlier my car run off the road. You can really enjoy great from kindness acts, so always lend your hands to others in trouble.
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