题目

下列关于运动的描述中，参考系的选取符合描述的是( )A. 诗句“飞流直下三千尺”，是以飞流作为参考系的B. “钱塘江观潮时，观众只觉得潮水扑面而来”，是以潮水作为参考系的C. “两岸猿声啼不住，轻舟已过万重山”，是以万重山作为参考系的D. 升国旗时，观察到国旗冉冉升起，观察者是以国旗作为参考系的 阅读理解 　　It is well known that Albert Einstein was one of the greatest scientists of all time and he was also a really great person．Here are some interesting things about him． When Einstein started to work in America, someone asked him what he needed．He said he needed a desk, some paper and a pencil．He also asked for a big waste-paper basket to hold all of his mistakes．This shows that he knew even the cleverest man in the world can only learn by making mistakes． 　　Einstein regarded time as very important．He never wore socks and he thought putting on socks was a waste of time as people already wore shoes．He also thought it was a waste of time remembering things that could quickly be found in a book．That’s why he never remembered his own phone number, which was in the phone book．He knew what was worth remembering．It is true that if we are going to do great things in our lives, we can not waste our time． 　　Einstein liked to joke too．Once in an exam a student asked him why all the questions were the same as last year’s．Einstein replied the questions were the same but the answers were different! (1) In one exam, Einstein ________． [　　] A． asked different questions B． asked difficult questions C． wanted the answers all the same D． wanted different answers (2) Einstein never remembered his own phone number because ________． [　　] A． no one told him the number B． he couldn’t remember it at all． C． he didn’t think it was worth remembering． D． he didn’t have a phone． (3) According to the passage, which of the following is TRUE? [　　] A． Einstein has been to many countries except America． B． Einstein thought people could learn from mistakes． C． Einstein thought socks were as important as shoes． D． Einstein didn’t like talking with others． (4) From the passage, we learn ________． [　　] A． Einstein thought time was very important． B． Einstein was too careful to make mistakes． C． Einstein made few jokes with the students． D． Einstein was a person who remembered everything clearly．