距牵引供电设备带电部分超过2m的燃着物体，使用沙土灭火时，牵引供电设备可不停电，但须 发布时间：2019-08-19 20:45 │ 来源：www.tikuol.com 题型：单项选择题 问题： 距牵引供电设备带电部分超过2m的燃着物体，使用沙土灭火时，牵引供电设备可不停电，但须保持灭火机具及沙土等与带电部分的距离在（）以上。A、1米B、2米C、3米
题型：单项选择题 完形填空。 I'm always busy with my work. I remember that I don't 1 a vacation for a long time. One day, my cousin 2 me and said, "Hey, Eddie. Let's go to Montreal (蒙特利尔) for our vacation! You are always 3 ." That really hit (让……心动) me. He was right. I'm 4 and stressed out, so I decide to take a short vacation. I'm 5 three days putting my work in order (整理工作). We are staying in Montreal 6 eight days. I think I'm feeling 7 in Montreal. I know it is great 8 the Internet. The people there are friendly 9 the weather is nice. We are having a good time. We are going 10 every day. I learned 11 to swim last year. We are eating delicious local (当地的) 12 . We are playing soccer once or twice every 13 . Every night is going to be nice. I am 14 making many friends there. 15 eight happy days in Montreal, we're getting back to Toronto. ( )1. A. find ( )2. A. heard ( )3. A. studying ( )4. A. tired ( )5. A. taking ( )6. A. in ( )7. A. bad ( )8. A. at ( )9. A. and ( )10. A. hiking ( )11. A. what ( )12. A. habits ( )13. A. day ( )14. A. too ( )15. A. Before B. play B. tried B. crying B. sad B. spending B. on B. weak B. of B. but B. swimming B. how B. health B. week B. only B. Until C. bring C. had C. workingC. relaxedC. restingC. for C. well C. in C. if C. campingC. when C. grades C. month C. also C. After D. take D. visited D. sleeping D. happy D. paying D. with D. angry D. from D. so D. shopping D. why D. food D. year D. really D. During 查看答案
题型：单项选择题 一条环形赛道前半段为上坡，后段为下坡，上坡和下坡的长度相等，两辆车同时从赛道起点出发同向行驶，其中A车上下坡时速相等，而B车上坡时速比A车慢20%，下坡时速比A车快20%，问A车跑到第几圈时，两车再次齐头并进( )A．23B．22C．24D．25 查看答案