如图所示，为一质点运动的位移—时间图象，曲线为一段圆弧，则下列说法中正确的是 发布时间：2017-05-20 17:51 │ 来源：www.tikuol.com 题型：选择题 问题： 如图所示，为一质点运动的位移—时间图象，曲线为一段圆弧，则下列说法中正确的是A．质点可能做圆周运动B．质点一定做直线运动C．t1时刻质点离开出发点一定最远D．质点运动的速率选减小后增大
题型：选择题 先通读短文，掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案，并将其标号填入题前括号内。 Many people go to school for education. They learn languages, history, math and 1 subjects. Others go to school to learn skills to make a living. Schools education is very important and useful. Yet, no one can learn 2 from school. Even a very good teacher can't teach his students everything they want to know. The teacher's jobis to show his students how 3 . He teaches them how to read and how to think. So, many things will be learned 4 school by the students themselves. It is always more important to know how to study by students 5 than to remember some formulas (公式).It is very easy to learn a formula in math, but it is hard to use a formula in 6 a math problem. Great scientists 7 us didn't get everything from school. Their teachers only showed them the way. Edison didn't 8 finish primary school, but he was so successful. He invented so many things for human beings. They were successful 9 they knew how to study. They read books that were not taught at school. They would ask many questions as they read. They did 10 experiments (实验). They worked hard all their lives andnever wasted time. The most important thing was that they knew how to use their brain. ( ) 1. A. any other ( ) 2. A. something ( ) 3. A. learning ( ) 4. A. outside ( ) 5. A. himself ( ) 6. A. working on ( ) 7. A. before ( ) 8. A. but ( ) 9. A. why ( ) 10. A. thousands B. some other B. anything B. learned B. out B. herself B. working out B. behind B. and B. so B. thousands ofC. others C. nothing C. to learn C. for C. oneself C. thinking about C. after C. still C. because C. thousand of D. the other D. everything D. learn D. at D. themselves D. understanding D. in the front of D. even D. though D. many thousands 查看答案
