在数控车床编程中有两种坐标系：分别为（）坐标系和（）坐标系。 发布时间：2020-01-29 04:50 │ 来源：www.tikuol.com 题型：填空题 问题： 在数控车床编程中有两种坐标系：分别为（）坐标系和（）坐标系。
题型：填空题 完形填空 John's family 1 On vacation next month. They 2 go to the beach. John is going on Mondayand 3 On Thursday. He 4 there for less than a week. John's father 5 from Monday to Thursday. 6 he can't go with John. He is going on vacation on Friday and getting back on Sunday. John's mother 7 a housewife. She 8 a lot of time. She is going on vacation on Monday. She's staying 9 and coming back on Sunday. They 10 a good time at the beach.( )1. A. go ( )2. A. want to ( )3. A. coming home ( )4. A. stay ( )5. A. works ( )6. A. But ( )7. A. am ( )8. A. has ( )9. A. all week ( )10. A. had B. are going B. decide B. come home B. stays B. goes B. Or B. be B. have B. week B. are having C. going C. forget C. come to home C. is staying C .leaves C. So C. are C. doesn't have C. week all C. having D. goes D. hope D. coming to home D. stayed D. studies D. And D. is D. doesn't has D. all a week D. have 查看答案
题型：填空题 关于自密封瓶内抽吸药液的方法，下列叙述错误的一项是（）A.自密闭瓶内抽药，针头与瓶塞应垂直 B.药瓶内应先注入与所需药液等量空气后再抽吸药液 C.排气时须以食指扶住针栓 D.开启瓶盖后，用酒精棉签消毒瓶塞后再抽吸药液 E.吸药时针头斜面应向下，空筒容量刻度朝上 查看答案