为了保障在瞬间故障后迅速恢复供电，有的跌落式熔断器具有（）。A、单次重合功能 B、二 发布时间：2019-02-02 02:30 │ 来源：www.tikuol.com 题型：单项选择题 问题： 为了保障在瞬间故障后迅速恢复供电，有的跌落式熔断器具有（）。A、单次重合功能B、二次重合功能C、多次重合功能D、熔丝自愈功能
题型：单项选择题 完形填空 When I was young, I belonged to a club that did community service work. There was one specific event that was unusual for me. I spent three or four hours handing out warm dinner to the homeless out in the streets. After that I went to a homeless shelter not far from the Bay Bridge. I was in high school and at the time my sister was too young to__1__. She wanted to help, __2__she made four or five dozen chocolate chip cookies for me to__3__and hand out to people. When getting to the homeless shelter__4__passed out the remaining meals.__5__, I began making sandwiches and__6__them with the crowd. I had the containers with my__7__cookies in them and began to__8__, offering themto anyone near me. I__9__an old gentleman and said, "Sir, would you like a cookie? " He stopped and turned around, __10__and said, "What did you say? Did you call me sir? " I told him I__11__, and his eyes__12__a little bit and he said, "No one has__13__called me sir." So he__14__. It struck me. I explained I had been raised that__15__color and social status, everyone deserved respect.It__16__me to think that just because he was homeless, no one__17__him the honor. It broke my heart, and I__18__I just didn't understand__19__no one ever called him sir? I had never thought that anyone was below me because I wasn't raised that way. Every__20__person deserves to be treated with dignity. Years later, I still carry that memory and the lessons it taught me. Sometimes, what we take for grantedcan really make a difference in someone's life. How have you made a difference to others? How have others made a difference to you? ( )1. A. participate ( )2. A. however ( )3. A. bring ( )4. A. I ( )5. A. First ( )6. A. shared ( )7. A. classmate's ( )8. A. walk around ( )9. A. went ( )10. A. looked at me rightly ( )11. A. had ( )12. A. watered ( )13. A. already ( )14. A. was completely frightened ( )15. A. in spite of ( )16. A. strengthened ( )17. A. handed ( )18. A. had no choice but to cry ( )19. A. what ( )20. A. single B. involve B. but B. fetch B. you B. Next B. gave B. schoolmate's B. knock around B. came B. stared at me with difficulty B. called B. cried B. ever B. was not a little confused B. regardless of B. saddened B. afforded B. couldn't help to cry B. when B. poor C. choose C. yet C. collect C. she C. Third C. helped C. sister's C. come around C. approached C. glared at me in anger C. would C. tore C. still C. was completely taken aback C. concerned about C. frightened C. provided C. had no right to cry C. whether C. ordinary D. go D. so D. take D. we D. Finally D. assisted D. family's D. stand around D. met D. looked me right in the eye D. do D. dropped D. yet D. was not a bit surprised D. for fear of D. pleased D. supplied D. couldn't help but cry D. why D. normal 查看答案
题型：单项选择题 患者女，48岁，因“接触性 * * 出血半年余”来诊。妇科查体：宫颈肥大，质地偏硬。宫颈刮片病理：宫颈癌。超声检查时不可能出现的是（）。A.宫颈见边界清楚、回声均匀的圆形低回声肿物 B.宫颈结构模糊 C.宫颈肿物内部血流信号增多，呈散在条状或分支状 D.可记录到低阻力型动脉频谱 E.一侧肾盂、输尿管扩张 查看答案