问题
多项选择题
电机车过曲线时掉道，原因是（）
A、列车行驶速度太快
B、曲线外轨超高或不足
C、曲线半径小
D、曲线内轨未加宽
答案
参考答案：A, B, C, D
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电机车过曲线时掉道，原因是（）
A、列车行驶速度太快
B、曲线外轨超高或不足
C、曲线半径小
D、曲线内轨未加宽
参考答案：A, B, C, D
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| The Western world has always been divided into two types of people-the cool and the uncool. It is a 1 that starts in school. The cool kids are good at sports. They are 2 with the opposite sex. They are goodlooking and people want to 3 their style. They can do their homework but they don't 4 a big effort. That would not be cool. The uncool kids are in the 5 of the playground. They are very bright, but they don't have great 6 skills and they are 7 at sports. When they are not programming computers or doing calculus(微 积分) in their heads, they are reading comic books and watching shows 8 the X Files. They are 9 as the geeks(怪人). Here are the geeks. The geeks are taking over(占上风). Make friends with them now 10 they will put virus in your computer and 11 your math homework to ruin. Geeks might not be popular at school, yet they do pass their examinations, and they might not be too popular at university, but 12 good degrees. The most important 13 of the 21st century, computers and IT, has been at least partly created by geeks. Geek heroes like Bill Gates 14 others to follow their examples. Being a geek is a way of earning good money. And the creation of the Internet gave them a 15 of their own to work and play in, making them a global force. 16 , the effect of the geeks 17 popular culture has started a new trend. It is now cool to be 18 . Geek culture is becoming an important part of general popular culture, in which what you know is more important than 19 you look like. But there are also 20 . Geeks were often bullied (欺侮)or laughed at in school. Now a geek may be your boss. Perhaps it is time for punishment. | ||||
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