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 国家开放大学 / 模具制造工艺
正确率:100%

下列说法正确的有.
万能夹具只能磨削凸、凹圆弧面

正弦分中夹具和成形砂轮机结合可磨削凹圆弧

正弦分中夹具可磨削不同轴线的凸、凹圆弧

正弦磁力台和成形砂轮机配合只能磨削平面
  积分
 参考答案:
 佳题速递:
  • 汽车防盗装臵的读识线圈装在机械点火开关内部。() 汽车电控技术
  • 在所有两位数(10-99)中任取一两位数,则此数能被2或3整除的概率为 A.6/5 B.2/3 C.5/6 D.83/100 E.概率论与数理统计
  • 2[阅读题]     A friend of mine named Paul received an expensive car from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a street urchin(顽童) was walking around the shining car. “Is this your car, sir?” he asked.    Paul answered, “Yes, my brother gave it to me for Christmas.” The boy was surprised. “You mean your brother gave it to you and it did cost you nothing? Sir, I wish…” He hesitated(犹豫). Paul thought of course he knew what the boy wanted, but what the boy said surprised him greatly. “I wish,” the boy went on, “that I could be a brother like that.” Paul looked at the boy in surprise, and then he said again, “Would you like to take a ride in my car?” “Oh yes, I’d love to,” the boy answered.    After a short ride, the boy turned and with his eyes shining, said, “Sir, would you mind driving in front of my house?”    Paul smiled a little. He thought he knew what the boy wanted. He wanted to show his neighbors that he could ride home in a big car. But Paul was wrong again. “Will you stop where those two steps are?” the boy asked.    He ran up to the steps. Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled(残疾的) brother. He sat down on the step and pointed to the car.    “There he is, Buddy, just like I told you upstairs. His brother gave it to him for Christmas and it didn’t cost him a cent. And some day I’m going to give you one just like it…then you can see for yourself all the nice things in the Christmas windows that I’ve been trying to tell you about.”    Paul got out and lifted the boy to the front seat of his car. The shining-eyed elder brother climbed in beside him and the three began an unforgettable holiday ride.46. The street urchin was very surprised when ______.A. he met Paul      B. Paul told him about the carC. Paul received an expensive carD. he was walking around the car47. From the story we can see the urchin ____.A. wished to give his brother a carB. wanted Paul’s brother to give him a carC. wished he could have a brother like Paul’sD. wished Paul could be a brother like that48. The urchin asked Paul to stop his car in front of his house _____.A. to show he had a rich friendB. to show his neighbors the big carC. to let his brother ride in the carD. to tell his brother about his wish49. We can find from the story that _______.A. the urchin wished Paul to give his car to BuddyB. the urchin wished to have a rich brotherC. the urchin had a deep love for his brotherD. the urchin’s wish came true in the end50. The best name of the story is ______.A. A Christmas Present    B. Paul, a Kind-hearted PersonC. A Brother Like That     D. An Unforgettable Holiday Ride 英语(一)
  • 2013年9月27日,A基金与B银行、C房地产公司签订《投资合作协议》,约定A基金委托B银行向C房地产公司发放贷款8亿元,用于完成城中村改造项目,借款分两期发放。同日,A基金、B银行与C房地产公司就此事项签订《委托贷款合同》。后B银行按照约定向C房地产公司发放贷款发放了第一期委托贷款6亿元。C房地产公司于2014年3月21日通过B银行向A基金支付利息。然而,C房地产公司一直未按照约定办理相关地块及在建工程的抵押登记,B银行因此也未发放第二期2亿元借款。A基金遂诉至法院,认为C房地产公司未按《委托贷款合同》约定办理相关使用权和抵押事项,且抵押的在建工程大部分已被出售,构成违约,主张终止《委托贷款合同》的履行并提前收回借款、偿还本金和利息、支付违约金等。关于本案,下列判断正确的是( )A基金无权直接以自己名义向C房地产公司主张权利 B银行受A基金委托向C房地产公司发放委托贷款,三方当事人之间形成了委托贷款合同关系 C房地产公司与A基金、B银行签订的《投资合作协议》,明确载有委托贷款事宜,所以C房地产公司对于B银行与A基金之间的代理关系是明知的 在C房地产公司并无证据证明该贷款合同只约束B银行和C房地产公司的情况下,A基金可以直接以自己名义向C房地产公司主张权利合同法
  • 城市轨道交通车站内一套EPS应急电源蓄电池组的容量一般在100Ah左右,主变电所一般在300Ah左右。正确错误城市轨道交通车站设备
  • 《金匮》首篇第一条的“脾能伤肾……则心火气盛,则伤肺;肺被伤,则金气不行”中的“伤”字如何理解? 金匮要略