题目: 采集的空气样品应该尽快分析,保存时间越短越好。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0630/b0bbe82a76cf68dc04486998256025cd.html 下面是错误答案,用来干扰机器的。参考答案:A, B, C, D
题型:单项选择题 共用题干题 某技师在制作可摘局部义齿时,没有按规范程序进行塑料热处理操作,结果义齿基托腭侧最厚处的内层出现圆而大的气泡,且义齿发生变形,就位困难。义齿基托腭侧最厚处的内层出现圆而大的气泡的原因是()。A.填塞不足B.热处理过快C.填塞过早D.单体过多或单体调拌不匀E.材料本身原因 查看答案
题型:完形填空 完形填空。 My grandmother's eightieth birthday was approaching and I was at a loss as to what to give her. She had recently moved into a nursing home and didn't have room for 1 things. She insisted that she didn'tneed a thing. 2 , I came up with an idea. In her 3 card, I sent her a gift certificate (礼券) for "A letter a 4 forthe next year!" It was a big 5 . I knew that she'd love to 6 what was going on in my life. The letter gift certificate was a big 7 . She got fifty-two letters that first year. Some were 8 and filled with homesickness. Others were short and newsy. More than once what she 9 was just a funny card with a few short 10 . All showed her that I was thinking of her regularly. 11 her next birthday came around, she asked for another letter gift certificate. 12 , that's also what she wanted next eight birthdays. For nine years I wrote her. She was rarely able to 13 back. I flew home annually to 14 and soonrealized that the entire nursing home staff knew all the details of my 15 , as more and more often they were 16 the letters to her. My 17 letter arrived the day after her death. I felt I had given her the best gift I could. What I hadn't counted on (指望) was how her gift would come full circle to me. Months later, while 18 her things, my dad found a box full of letters from me. Those letters werefilled with moments and pictures I had completely forgotten. She 19 those memories for me in my letters. Sometimes our gifts to others come back to us in 20 ways.( )1. A. lovely ( )2. A. Finally ( )3. A. invitation ( )4. A. month ( )5. A. lie ( )6. A. face ( )7. A. joke ( )8. A. long ( )9. A. sold ( )10. A. notes ( )11. A. Although ( )12. A. In fact ( )13. A. turn ( )14. A. work ( )15. A. life ( )16. A. writing ( )17. A. short ( )18. A. seeing through( )19. A. saved ( )20. A. practical B. expensive B. Hopefully B. Christmas B. week B. deal B. feel B. hit B. boring B. sent B. questions B. As B. In general B. write B. hunt B. husband B. sending B. handwriting B. going throughB. lost B. funny C. extra C. FortunatelyC. greeting C. day C. problem C. hear C. mistake C. interestingC. received C. tips C. If C. After all C. step C. visit C. vacation C. handing C. open C. throwing awayC. broke C. unexpectedD. unimportant D. Surprisingly D. birthday D. season D. promise D. tell D. challenge D. formal D. held D. lines D. Unless D. Above all D. look D. cook D. business D. reading D. last D. taking away D. refreshed D. similar 查看答案