高温干馏最终温度为（）。A．800-900 B．900-1000 C．950-105 发布时间：2017-07-26 06:17 │ 来源：www.tikuol.com 题型：单项选择题 问题： 高温干馏最终温度为（）。A．800-900B．900-1000C．950-1050D．1000-1200
题型：单项选择题 完形填空 Professor Green, known to the world as a scientist, is not only absent-minded but short-sighted as well. His mind is always busy 1 scientific problems and seldom notices what is going on 2 him. One fine day recently, he went 3 a walk in the countryside, but as 4 he has a book in his hand. When he went out , he began to read his book . He hadn't gone far 5 he run into a big cow and fell down. In the fall, he had lost his glasses, without which he couldn't see anything. He thought he had hit his head 6 a fat lady. "I'm sorry, Madam." He said politely 7 searching for his glasses. As soon as he had 8 , he realized his mistake. Soon he was fixing his mind on his book 9 and paid no attention to anything else. He had scarcely been walking for five minutes when he fell over again, _10 both his book and his glasses. This time he got very angry, seizing his umbrella, he gave the "cow" a wild blow. Then, after finding his glasses, he realized with horror that he made a second mistake. A large fat woman was fleeing from him in a horror.( )1. A. to think ( )2. A. with ( )3. A. for ( )4. A. also ( )5. A. when ( )6. A. to ( )7. A. after ( )8. A. put it on ( )9. A. always ( )10. A. holding B. thinking B. around B. to B. often B. while B. against B. in B. taken them offB. again B. getting C. thinking aboutC. for C. towards C. ever C. just then C. about C. before C. put them on C. usually C. finding D. to think of D. at D. over D. usual D. at that time D. onto D. during D. taken them outD. very much D. losing 查看答案