题目

听材料，回答问题。 （1） What's the trouble with the man? A . He can't see clearly. B . He can't hear clearly. C . He can't sleep at night. （2） How long has the man been like this? A . For about a day. B . For about a month. C . For about a week. （3） What does the woman advise the man to do? A . Stay in bed for at least one week. B . Stop working too hard and get some rest. C . Stop reading and writing.A，B两地相距80千米，一辆大汽车从A地开出2小时后，又从A地开出另一辆小汽车，已知小汽车的速度是大汽车速度的3倍，结果小汽车比大汽车早40分钟到达B地，求两辆汽车每小时各走多少千米．