问题描述：
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Introduce yourself first and talk about something you have in common with new friends．【来源:学科
A．对
B．错
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上一篇：涉及到跨去年和本年期间的物业费在去年年末未完成收缴的，费用期间属于去年的计入（）
下一篇：（）A scientist name Charles had a strange idea． He wan ted to invent a new kind of car which could go without a driver． It could also be used as a living room． That means you can go anywhere on your sofa in the car． You might say that it’s impossible． But Charles succeeded in making it in a factory and named it Tridika．Tridika has no wheels and it starts working when it reaches the magnetic levitation tracks（磁悬浮轨道）． It takes its energy from its tracks． And it works in the same ways as a magnetic train． It moves very fast． As everyone knows， cities are developing rapidly． There are more and more cars running on the road． So parking space is limited． Sometimes it’s hard to find a place to park（停车）． Tridika can solve this problem easily because it needn’t park on the ground． Actually， it can park on the outside wall of the building with the help of an elevator system（电梯系统）． In this way， much parking space can be saved． When Tridika parks itself in front of your apartment， you can get into your room directly． Of course， there must be a side door in the outside wall． Then Tridica becomes another living room． It’s really amazing， isn’t it？Tridika can hold six passengers． So you can go on vacation in it with your family in your free time． of course it can also be sued as an office while you are traveling on the road． That is to say， you can travel and work at the same time．根据短文内容，选择最佳答案。51． Who invented the new kind of car？
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