某台水轮发电机组导叶接力器活塞直径为700mm，接力器活塞杆直径为300mm，油压为 发布时间：2019-01-12 15:10 │ 来源：www.tikuol.com 题型：问答题 计算题 问题： 某台水轮发电机组导叶接力器活塞直径为700mm，接力器活塞杆直径为300mm，油压为2.0MPa，推拉杆直径是200mm，试求油压全部作用于推拉杆的压力是多少？
题型：问答题 计算题 某班学生60人进行一次数学测验，成绩分成：50～59、60～69、70～79、80～89、90～100五组，前四组频率分别为0.05，0.15，0.35，0.30．求这次测验中优分（不低于80分）的人数是多少？并画出条形统计图． 查看答案
题型：问答题 计算题 完形填空。 It was on a winter morning, near Oxford, Maryland, that I set the breakfast table beside the hugewindow, which _1_ the Tred Avon River.The snow decorated the shore in white.For a moment I stoodquietly against the bookcase, appreciating what the night's snow had _2 . 3 I leaned forward andpeered (盯着看) close to the frosted window."It really is!" I cried out loud."There is a goose out there!" I _4_ to the bookcase and pulled out a pair of binoculars (望远镜).Into their sights came the 5_ of a large Canada goose, very still, its wings folded tight to its sides, its _6_ frozen to the ice.Then from the dark sides, I saw a line of swans.They crossed 7 the west of the broad river, moving _8_ to the east.As I _9_, the leader swung to the right, and then the white _10_ of birds become a white circle.It floatedfrom the top of the sky downward.At last, as easy as feathers coming to earth, the circle _11 the ice. The swans _12_ the frozen goose! Amazingly, those bills (啄) began to work on _13 .The long necks were lifted and curved down, _14_. It went on for a long time.At last, the goose was free and _15_ itsbig webbed (有蹼的) feet slowly.The goose _16 its wings as far as they would go.The swans took off and _17 on their eastward journey, in perfect formation, to their secret destination._18_ them, risingwith incredible speed and joy, the goose moved into the sky.I watched them _19 they disappeared overthe tips of the farthest trees.Only then did I realize that tears were running down my cheeks.This is a truestory.I do not try to interpret it here.I just often 20 it in the bad moments, and tell myself, "If so for birds, why not for man?"( )1. A. undertook ( )2. A. destroyed ( )3. A. Finally ( )4. A. rushed ( )5. A. figure ( )6. A. head ( )7. A. along ( )8. A. steadily ( )9. A. watched ( )10. A. block ( )11. A. skated on ( )12. A. threatened ( )13. A. the ice ( )14. A. one after another( )15. A. washing ( )16. A. enlarged ( )17. A. started ( )18. A. Behind ( )19. A. after ( )20. A. write about B. overlooked B. covered B. Unwillingly B. returne B. shadow B. body B. from B. wildly B. expecte B. mass B. landed on B. attacked B. their featherB. side by side B. protecting B. spread B. carried B. In front of B. althoug B. keep up C. witnessed C. painted C. DisappointedlyC. advanced C. cry C. feet C. around C. highly C. predicted C. dot C. fell down to C. surrounded C. the river C. now and then C. moving C. lifted C. repeated C. Along with C. unless C. think of D. passed D. hidden D. Suddenly D. reached D. baby D. beak D. in D. closely D. feared D. line D. broke into D. killed D. the shore D. again and againD. warming D. threw D. stopped D. Including D. until D. tell from 查看答案
题型：问答题 计算题 当符合下列（）条件时，期货公司应当承担因期货从业人员的行为所产生的民事责任。A．该行为在所属期货公司经营范围内B．该行为为期货交易行为C．该期货从业人员为该期货公司的从业人员D．该期货从业人员违反了所属期货公司公司章程的规定 查看答案
