绕湖的一周是22千米，甲、乙二人从湖边某一地点同时出发反向而行，甲以4千米/时的速度每走1小时后休息5分钟，乙以6千米/时的速度每走50分钟后休息10分钟，则两人从出发到第一次相遇用了多少分钟（）
A．108分钟
B．118分钟
C．128分钟
D．148分钟
参考答案：D
解析：
65分钟时，两人共走
；130分钟时，两人共走9.5×2=19(千米)。 此时两人相距(22-19)千米；到相遇两人都不再休息。还需3÷(4+6)×60=18(分钟)，两人从出发到第一次相遇用130+18=148(分钟)。
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| Have you ever asked yourself why children go to school? You may 1 they go to learn languages, P.E., history, science and all other 2 . But why do they learn these things? We send our children to school to prepare them for the time 3 they will grow up and will begin to work for 4 . Nearly everything they study at school has some practical use in their life. But is that the 5 reason why they go to school? There is more in education than just 6 facts. We go to school above all to learn how to learn, so that then we have left school we can 7 to learn. A man who really knows how to learn will always be successful, because whenever he has to do something new which he has never had to do 8 he will rapidly teach himself how to do it 9 the best way. The uneducated person, on the other hand, is 10 unable to do something new, or does it badly. The purpose of school, therefore, is not to teach languages, math, geography, etc, but to teach pupils the way to learn. | ||||
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