裂解汽油加氢装置非仪表压缩空气的要求是()。A、露点温度≤-40℃ B、含油量<1m 发布时间:2017-07-06 12:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 裂解汽油加氢装置非仪表压缩空气的要求是()。A、露点温度≤-40℃B、含油量<1mg/m3C、尘埃粒径<1μmD、压力约0.7MPa
题型:单项选择题 男、48岁。阵发性腹痛伴腹胀、呕吐。停止排便与排气3d。4h前腹痛变为持续性,胃肠减压液内出现暗红色液体。该病人可能的诊断是:()。A.绞窄性肠梗阻B.单纯性肠梗阻C.应激性溃疡D.急性弥漫性腹膜炎E.肠系膜血栓形成 查看答案
题型:单项选择题 2009年入秋以来,面对西南地区发生的特大旱灾,政府有关部门紧急行动,周密部署,科学指挥,精确播报,精心高度。抗旱救灾工作有条不紊,卓有成效地向前推进。这表明,我国政府履行了 [ ]A.维护社会治安和社会秩序的职能 B.提供社会公共服务的职能 C.建立健全社会保障体系的职能 D.经济调节和市场监管的职能 查看答案
题型:单项选择题 综合性学习水平考查。 “龙”是我们中 * * 的象征,“龙”在汉字汉语和中国古代的许多作品中出现得十分频繁,请运用有关知识,回答下列问题: (1)在“笼”、“珑”这些例字后,再写出以“龙”为偏旁的汉字4个。 答: 笼、珑、_______、_______、_______、_______。 (2)在“望子成龙”、“龙马精神”两个成语后,再写出含有“龙”字的成语4个。 答:望子成龙、龙马精神、_______、_______、_______、_______。 (3)简要介绍名著《西游记》里与“龙”有关的一个故事。(不超过50字)答: 查看答案
题型:单项选择题 完形填空 The Pecan Thief When I was six years old, I was visiting my grandfather' s farm in Kansas.Grandpa had sent me into the 1 to gather pecans for us to enjoy later. Pecan picking was really 2 work and my little basket was only half full.I wasn' t about to_3_ Grandpa down.Just then something caught my 4 . A large brown squirrel was a few feet away.I watched as he picked up a pecan, hurried to a tree and 5 in a large hole in the trunk.A moment later the squirrel 6 out and climbed down to the ground to pick up another nut.Once again, he took the pecan back to his hiding place. Not so 7 anymore, I thought.I dashed over to the tree and looked into the hole.It was 8 with pecans!Golden pecans were right there for taking.This was my 9 . Handful by handful, I scooped all of those pecans into my basket.Now it was full! I was so 10 of myself.I couldn' t wait to show Grandpa all the pecans. 11 , I ran back and shouted, "Look at all the pecans!" He looked into the basket and said, "Well, well, how did you find so many?" I told him how I' d 12 the squirrel and taken the pecans from his hiding place. Grandpa congratulated me on how smart I' d been in observing the squirrel and his habits.Then he did something that 13 me.He handed the basket back to me and put his arm gently 14 my shoulders. "That squirrel worked very hard to gather his winter 15 of food, " he said."Now that all of his pecans are gone, don' t you think that little squirrel will 16 the cold winter?" "I didn't think about that, " I said. "I know, " Grandpa said."But a good man should never take 17 of someone else' s hard work." Suddenly I felt a bit 18 .The image of the starving squirrel wouldn't 19 my mind.There was only one thing I could do.I carried the basket back to the tree and poured all the nuts into the hole. I didn't eat any pecans that night, but I had something much more filling-the 20 of knowing I had done just the right thing.( )1. A. rooms ( )2. A. hard ( )3. A. let ( )4. A. sweater ( )5. A. joined ( )6. A. jumped ( )7. A. strange ( )8. A. covered ( )9. A. time ( )10. A. afraid ( )11. A. Otherwise ( )12. A. driven ( )13. A. annoyed ( )14. A. off ( )15. A. supply ( )16. A. escape ( )17. A. place ( )18. A. guilty ( )19. A. open ( )20. A. inspirationB. woods B. dirty B. settle B. basket B. lived B. held B. secret B. filled B. choice B. a shamed B. However B. followed B. satisfied B. beside B. cost B. spend B. notice B. unconfident B. leave B. expectation C. holes C. light C. have C. eye C. discovered C. stood C. anxious C. rebuilt C. chance C. careful C. Besides C. protected C. surprised C. over C. support C. survive C. advantage C. embarrassed C. cross C. impression D. roads D. easy D. keep D. hand D. disappeared D. found D. patient D. decorated D. achievement D. proud D. Therefore D. caught D. delighted D. around D. preparation D. flee D. charge D. nervous D. occupy D. satisfaction 查看答案
题型:单项选择题 图中虚线为一组间距相等的同心圆,圆心处固定一带正电的点电荷.一带电粒子以一定初速度射入电场,实线为粒子仅在电场力作用下的运动轨迹,a、b、c三点是实绩与虚线的交点.则该粒子( )A.带负电B.在c点受力最大C.在b点的电势能大于在c点的电势能D.由a点到b点的动能变化大于由b点到c点的动能变化 查看答案