题目

小明看到鸡蛋沉在水杯底，他沿杯壁缓慢加入盐水使鸡蛋上浮．在此过程中，鸡蛋受到的浮力F随时间t的变化图像可能是下图中的   答案：AJim is the son of a farm owner. One New Year’s Day, when he was 15 years old, his father____him to work on the farm for one year at his free time. Jim was____with his father’s idea. “That isn’t my job. I have____school work to do.” At hearing this, his father said, “I promise (答应) to give you the best present if you____finish one year’s work.” Jim thought for a while and____Starting one Saturday, the boy got up early and worked____until evening, just like any other farmer. Time passed____Jim’s crops grew very well. On the last day of the year, the father called his son to him. “I’m happy to see that you have worked very hard the whole year,” said the father. “Now, tell me____you want.”The boy smiled and showed his father a big piece of bread made from his wheat. “I’ve already got the____present. No pains, no gains. I think this is what you wanted me to____” His father was very pleased to hear that.1.A. asked B. invited C. promised D. helped2.A. happy B. unhappy C. excited D. familiar3.A. a few B. so little C. too much D. too many4.A. shall B. must C. need D. can5.A. refused B. answered C. agreed D. began6.A. hard B. hardly C. easily D. difficultly7.A. fast B. quickly C. slowly D. immediately8.A. that B. which C. how D. what9.A. least B. worst C. best D. smallest10.A. decide B. like C. take D. know