在加工薄壁工件时，要充分冷却、润滑工件，减少（）对工件加工精度的影响。A.热变形 B 发布时间：2019-07-27 08:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在加工薄壁工件时，要充分冷却、润滑工件，减少（）对工件加工精度的影响。A.热变形B.切屑C.切削力
题型：单项选择题 某企业9月份的资产总额为50 000元，负债总额为20 000元。9月份发生如下业务：9月份取得收入共计24 000元，发生费用共计15 000元，则9月份该企业的所有者权益总额为（ ）元。 A．31 000 B．39 000 C．50 000 D．45 000 查看答案
题型：单项选择题 完形填空。 "So teach him to close the door", my daughter Emma responded after listening to me 1 , again, about the dog coming in from the back door, bringing with him a blast of Buffalo January 2 air. Teach a dog to close a door behind him? That has got to be a really, really 3 thing to do. But then shetook a step 4 . "Come on, Kolby", she said, grabbing some treats (犒劳物) and 5 him in front of the opendoor. "Touch." And "touch" he did, which moved the door to a 6 position. She 7 him with a treat, smiled,looked at me, and said "see!" And I saw and became 8 . Over the last few days I have been with Kolby. Each time he comes in I bring him back to the 9 door and ask him to close. There have been 10 in the beginning,but lately more and more successes. However, there remains much work to be done. I have to get him to follow my hand signal again and again 11 he will close the door from a distance. But, I now realize, 12 you keep to the focus, the 13 will becompleted. What a 14 treat to have a dog that can close the door after himself! Even more wonder can be found inthe 15 I learned so clearly from both Emma and Kolby. A wish is just a wish until you decide to take 16 . Once you 17 the belief that it is "too hard", then itremains "too hard" and out of 18 . Once you want to accomplish a goal, and 19 that it is "easy", then it becomes "easy" to do what needs to be done. Just 20 doing it. ( )1. A. complain ( )2. A. thin ( )3. A. interesting ( )4. A. again ( )5. A. pushing ( )6. A. stopped ( )7. A. rewarded ( )8. A. moved ( )9. A. open ( )10. A. pleasures ( )11. A. in case ( )12. A. even if ( )13. A. interest ( )14. A. wonderful ( )15. A. knowledge ( )16. A. patience ( )17. A. hold on to ( )18. A. date ( )19. A. prove ( )20. A. imagine B. scream B. fresh B. funny B. further B. catching B. fixed B. provided B. convinced B. closed B. experiments B. even if B. as long as B. task B. small B. skills B. part B. pay attention to B. touch B. decide B. start C. worry C. dirty C. tough C. deeper C. driving C. closed C. offered C. concerned C. broken C. failures C. as if C. in that C. profit C. different C. lessons C. delight C. come up with C. reach C. approve C. keep D. scare D. cold D. possible D. backward D. positioning D. checked D. thanked D. puzzled D. perfect D. pauses D. so that D. unless D. harmony D. simple D. experience D. action D. live up to D. power D. realize D. enjoy 查看答案