题目

一辆汽车在平直高速公路上行驶，已知该车发动机的额定功率为110kW，若汽车以额定功率启动，在运动中所受的阻力为1900N，求该车行驶的最大速度。 答案：【答案】57.89m/s【解析】解：由P=Ff vmax 得：vmax==57.89m/s阅读下面的短文，在文后的句中每个空格上填上一个当适的单词。（每题1分，计10分）A cleaner gives a bag full of 400,000 yuan in cash(现金) back to the man who accidentally left it behind at a hotel in Hankou, Hubei Province.A student from Huazhong Normal University, who sweeps at the hotel to do a part-time job, found the bag and handed it over to the hotel reception. The hotel’s owner, impressed(使印象深刻) with his honesty, promised to make him a waiter at one of the restaurants.Chanjiang Daily A prepaid(预付) phone card charged a love story. A resident(居民) of Dalian, Liaoning Province, married a woman he met one year ago, when he recharged(续充) her cell phone with 100 yuan by mistake.He called the number he had mistakenly recharged, and the girl on the other end “was ever so polite.” “I fell in love,” the man said in a speech at his wedding last week.Liaoshen Evening NewsTwo Pieces of __【小题1】__ The first pieceThe second pieceTitleA cleaner __【小题2】__ a bag full of 400,000 yuan in cashA propaid phone card _【小题3】_ a love storyWhoA __【小题4】__ from Huazhong Normal UniversityA resident of DalianWhat happened·Found a bag __【小题5】__ 400,000 yuan·Gave the bag back its _【小题6】__·Recharged a woman’s cell phone __【小题7】__·Called the woman’s number·Fell in love__【小题8】__Got a __【小题9】__ as a waiter __【小题10】__ of his honestyMarried the woman