题目

某质点从静止开始做匀加速直线运动，已知第3秒内通过的位移是x，则物体运动的加速度为（ ） A．    B．    C．    D． 答案：解：3秒内的位移x=，2秒内的位移=2a．则，解得：a=．故A、B、D错误，C正确． 故选：C．I often read of incidents of misunderstanding or conflict. I’m left   1  . Why do these people create mistrust and problems, especially with those from other   2  ? I was growing up in Kuala Lumpur in the early 1960s,  3   children from different races and religions played and studied   4  in harmony. At that time my family lived a stone’s   5   from Ismail’s. And no one was bothered that Ismail was a Malay Muslim and I was an Indian Hindu—we just   6   our differences. Perhaps, our elders had not filled our heads with unnecessary advice, well   7   or otherwise. We were nine when we became friends. During the school holidays, we’d   8  the countryside on our bicycles, hoping to   9   the unexpected. At times Ismail would accompany my family as we made a rare shopping trip to town. We would be glad of his   10  . When I was twelve, my family moved to Johor. Ismail’s family later returned to their village, and I   11   touch with him. One spring afternoon in 1983, I stopped a taxi in Kuala Lumpur. I   12   my destination. The driver acknowledged my   13   but did not move off. Instead, he looked   14   at me. “Raddar?” he said, using my childhood nickname. I was astonished at being so   15   addressed (称呼). Unexpectedly! It was Ismail! Even after two   16   we still recognized each other. Grasping his shoulder, I felt a true affection, something   17   to describe. If we can allow our children to be   18   without prejudice, they’ll build friendships with people, regardless of race or religion, who will be   19   their side through thick and thin. On such friendships are societies built and   20   we can truly be, as William Shakespeare once wrote,“we happy few, we band of brothers”. 1.A. interested              B. pleased           C. puzzled                  D. excited 2.A. parties        B. cities              C. villages                   D. races 3.A. why            B. which            C. how            D. when 4.A. together                B. around           C. alone           D. apart 5.A. drop          B. throw            C. move                    D. roll 6.A. refused                 B. made             C. sought                   D. accepted 7.A. paid            B. meant            C. preserved                D. treated 8.A. explore                 B. search            C. discover                 D. desert 9.A. get through             B. deal with          C. come across              D. take away 10.A. arrival         B. choice         C. effort                    D. company 11.A. lost                   B. gained          C. developed                D. missed 12.A. stated                 B. ordered          C. decided                  D. chose 13.A. attempts               B. instructions       C. opinions                  D. arrangements 14.A. anxiously      B. carelessly       C. disappointedly            D. fixedly 15.A. familiarly       B. strangely          C. fully            D. coldly 16.A. departures     B. months                 C. years           D. decades 17.A. possible       B. funny                   C. hard                        D. clear 18.A. them           B. themselves      C. us                       D. ourselves 19.A. from                   B. by                C. with            D. against 20.A. still            B. otherwise                C. then            D. instead