在生产中应用最广泛的是（）和水套式加热炉。A、管式炉 B、火筒炉 C、卧式炉 D、立 发布时间：2019-07-21 21:13 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在生产中应用最广泛的是（）和水套式加热炉。A、管式炉B、火筒炉C、卧式炉D、立式圆筒炉
题型：单项选择题 完形填空。 When I was young, I was very embarrassed (尴尬) to be seen with my father. He was disabled and very short, and he 1 with great difficulty. When we walked together, with his hand on my arm for balance, people would 2 . I would be nervous about the unwanted 3 . It was 4 for us to walk in step, and because of that, we didn't say much as we went 5 But as we started out, he always said," You set the pace (步幅). I will try to follow you." Our usual walk was to or from the subway, which was how he got to work. He never missed a day, and would 6 it to the office even if others could not. He 7 talked about himself as an unhappy man, nor did he show any envy (嫉妒) of the more fortunate or able. What he 8 in others was a "good heart," 9 if he found one, the owner was good enough for him. He has been gone many years now. I wonder if he felt I didn't 10 to be seen with him during our walks. If he did, I am sorry I never told him how 11 I was. I think of him when I complain about life, when I envy another's good fortune, and when I don't have a "good heart". At such times I put my hand on his arm to get back my 12 , and say, "You set the pace. I will try to follow you." ( )1. A. walked ( )2. A. listen ( )3. A. invitation ( )4. A. possible ( )5. A. along ( )6. A. try ( )7. A. only ( )8. A. thought of ( )9. A. and ( )10. A.care ( )11. A. proud ( )12. A. luck B. spoke B. look B. information B. important B. away B. get B. never B. learned about B. but B. enjoy B. nervous B. balance C. played C. talk C. expression C. difficult C. alone C. make C. once C. depended on C. now C. hate C. sorry C. chance D. studied D. stand D. attention D. necessary D. around D. keep D. also D. looked forD. then D. like D. sad D. purpose 查看答案
题型：单项选择题 据统计，从20世纪90年代至今，全世界包括基因制药在内的生物技术药物的销售额，以年均30％的速度增长，生物制药已成为21世纪的朝阳产业。下列有关说法不正确的是 [ ]A．我们可以利用转基因工程技术使哺乳动物本身变成“批量生产药物的工厂”B．对于基因制药，我们应该科学地认识和评估，保障公众的知情权C．利用转基因技术还可以进行基因治疗，现在技术已经完全成熟D．由于转基因生物的安全问题，国家应建立相应的评估及预警机制 查看答案
题型：单项选择题 某工程网络计划中，工作S的紧后工作有A、B、C，工作A的最早开始时间和最迟开始时间分别为第9天和第14天，工作B的最早开始时间和最迟开始时间分别为第10天和第16天，工作C的最早开始时间和最迟开始时间分别为第11天和第15天，工作S的自由时差为5天，则工作S（）。A.总时差为10天B.总时差为11天C.最迟完成时间为第16天D.最早完成时间为第9天 查看答案