主页
学科
搜索
账户
常见问题
当前学科：矿井机电维修工
题目：
填空题
器设备可能堆积煤粉时，最高表面温度不应超过（）℃。
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
冷箱是（）。
经拥有本物业20％及以上的业主提议，业主委员会应当组织召开（）。
客户申请开立单位双整定期，应提供以下哪些资料（）
如果不考虑影响价值的其他因素，优先股股票的价值与下列各项关系说法正确的有()。
不符合弥漫性掌跖角化病的是（）
公民、法人和其他组织发现任何单位和个人有污染环境和破坏生态行为的，有权（）
驼业种树，凡长安豪富人为观游及卖果者，皆争迎取养。视驼所种树，或移徙，无不活，且硕茂、早实以蕃。他植者虽窥效慕，莫能如也。――节选自《种树郭橐驼传》概括这段文字的大意。
不考虑自旋，原子中的电子状态可以表示为 ψnlm=Rnl(r)Ylm(θ，φ) 对于初态为s态(能级Enl，l=0)，终态为p态(能级En'l'，l'=1)的电偶极自发跃迁，求终态磁量子数m=1，0，-1的分支比．
Close TestThe manager of a small building company was very (21) to get a bill for two white mice which one of his workmen had bought. He sent for the workman and asked him why he had had the bill (22) to the company."well ," the workman answered , "you remember the house we were (23) in Newbridge last week. don't you? One of the things we had to do there was to put in someNew electric wiring. Well , in one place we had to pass some wires through a pipe (24) and about an inch across ,which was built into solid stone and had four big bends (弯角) in it. (25) could think how to do this unless I had a good idea. I went to a shop and bought two white mice ,one of them male and the other female. Then I tied a thread to the body of the male mouse and put him into the pipe at one end , (26) Bill held the female mouse at theother end and pressed her gently to make her squeak. When the male mouse heard the female mouse's squeaks ， he rushed along the pipe to help her. I suppose he was a gentleman (27) he was only a mouse. Anyway , as he ran through the pipe , he (28) the thread behind him. It was then quite easy for us to tie one end of the thread to the electric wires and pull them (29) the pipe. " The manager (30) the billfor the white mice.21. A. surprised B. sorry C. strange D. fearful22. A. to be sent B. to sent C. send D. sent23. A. mending B. cleaning C. repairing D. setting24. A. thirty-feet-long B. thirty foots longC. thirty feet long D. thirty feets long25. A. None of us B. No one usC. No of us D. None us26. A. as B. so C. while D. when27. A. even though B. as thoughC. in fact D. sure enough28. A. pulled B. pushed C. lifted D. brought29. A. along B. through C. inside D. towards30. A. received B. agreed C. paid D. cashed
话务员在业务受理完毕时，应尽量让对方先放下话筒，以示（）。