问题
单项选择题
据报导，刘翔在2012年5月19日国际田联钻石联赛上海站110m跨栏比赛中，取得12秒97的好成绩，并获得第一名。与同组比赛的其他运动员相比，比赛过程中刘翔的（）
A.位移最大
B.初速度最大
C.运动时间最长
D.平均速度最大
答案
参考答案：D
解析：由题意可知，比赛过程中刘翔的平均速度最大，位移都相同，运动时间最短，D对；ABC错
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据报导，刘翔在2012年5月19日国际田联钻石联赛上海站110m跨栏比赛中，取得12秒97的好成绩，并获得第一名。与同组比赛的其他运动员相比，比赛过程中刘翔的（）
A.位移最大
B.初速度最大
C.运动时间最长
D.平均速度最大
参考答案：D
解析：由题意可知，比赛过程中刘翔的平均速度最大，位移都相同，运动时间最短，D对；ABC错
Mr. Evans lives and works in Sydney. Last week he had a______holiday, but he didn’t know______ to go. He said to his friend Robert “I hate the hot weather here, but I can’t______a cool place in Australia. Where should I go______a holiday?” “That’s easy,” said Robert, ” You can go to Moscow. Snow and ice are covering the ground there now.” Mr. Evens______ his advice. He bought a plane ticket and______Moscow. He enjoyed himself there, but one day he got into trouble. After lunch______a cold day, he went to a park in the city. He found that a dog followed him when he walked______a house. It seemed hungry. Maybe it wanted some food______,he thought. However, Mr. Evans had______ food in his pockets. He tried to make the dog______, but it began to bark at him. Just at that moment, he______a small stone on the ground. He tried to pick it up, but he______. “______strange these Russians are!” Mr. Evans said to______.”They tie up stones instead of their dogs.
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