在变频调速系统中电阻器的作用是（）。A、调速 B、限制起动电流 C、消耗惯性能量 发布时间：2017-11-10 02:08 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在变频调速系统中电阻器的作用是（）。A、调速B、限制起动电流C、消耗惯性能量
题型：单项选择题 完形填空。 It was a bright spring afternoon when Fieda told me she wouldn’t need me any more. I had just finished my four-hour work 1 up and down the stairs of her three-storey home, cleaning the floor and washing thedished. She was 2 jeans and a sweater. Sitting at the table I had just 3 . a pile of papers spread aroundher. Her husband’a 4 was going to be reduced by thirty percent. And they were trying to live as if it had 5 happened. I felt sorry for her. but I also felt a sense of 6 . I had been cleaning Freda’s house for five years and had 7 an unexpected relationship with the family.It was not just 8 I had become an expert at scraping（刮掉）dirt stuct to their wooden floor. 9 that I had learned exactly how to place toys on the girls’beds. It was 10 than that. For I felt I had become a part of their 11 . Freda stayed at home with the kids, 12 I would often see her in the morning 13 them to school. AndI’d be there when they 14 home at lunch for sandwiches and piano practice. I had 15 them grow up. NowI was fired, but the 16 thing was that I still wanted to keep scraping away the dirt and dust for the family. I left Freda’s house that day , wondering about the 17 relationship with my clients（主顾. Who am I 18 them? As a matter of fact. I’m 19 an employee－the lowest kind of employee. But I’m also a trusted 20 of the family. I can’t help worrying about what happens around me.( )1. A. stepping ( )2. A. hanging( )3. A. cleaned ( )4. A. duty ( )5. A. already( )6. A. regret ( )7. A. started ( )8. A. why ( )9. A. but ( )10. A. less ( )11. A. life ( )12. A. as ( )13. A. taking ( )14. A. left ( )15. A. found ( )16. A. possible( )17. A. meaning ( )18. A. for ( )19. A. hardly ( )20. A. member B. coming B. making B. washed B. money B. seldom B. surprise B. developed B. what B. and B. least B. story B. so B. bringing B. returned B. noticed B. great B. nature B. to B. certainly B. person C. jumping C. wearing C. swept C. work C. never C. fear C. improved C. that C. or C. more C. activity C. since C. meeting C. went C. watched C. proper C. result C. with C. probably C. relative D. moving D. changing D. brushed D. pay D. yet D. loss D. broken D. which D. for D. most D. experience D. however D. calling D. marched D. realized D. strange D. importance D. at D. merely D. companion 查看答案
题型：单项选择题 男性，28岁。因左上腹肿块进行性肿大就诊。体检：肝肋下2cm，脾肋下4cm。血红蛋白140g/L，白细胞120×109/L，血小板200×109/L。本例最可能的诊断是（）A.肝硬化脾功能亢进B.急性粒细胞白血病C.慢性粒细胞白血病D.类白血病反应E.慢性骨髓纤维化 查看答案