判断机体酸碱平衡的最基本指标是()。A.pH B.HCO3 C.CO2CP D.BE 发布时间:2018-07-18 18:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 判断机体酸碱平衡的最基本指标是()。A.pHB.HCO3C.CO2CPD.BEE.PaCO2
题型:单项选择题 按照马克思主义的观点,社会再生产包括生产、分配、交换、消费等环节。以下对四个环节关系的说法正确的是A.社会生产是整个再生产过程的起点,并对其他环节起着决定作用B.消费是物质资料生产总过程的最终目的和动力C.分配和交换是连接生产和消费的桥梁和纽带D.四个环节是环环相扣、相互决定的关系 查看答案
题型:单项选择题 完形填空。 A Fool's Day falls on 1st of April. People 1 forget the significance (意义) of the day. In March 1980, I was 2 at Durham University with seven other Chinese students. I had 3 to go to another university after graduation and had 4 application (申请) forms to several 5 . Every morning I arrived at the porter's office (传达室) and waited my fate. But no 6 came. On April 1st, as I was eating my 7 , Huang came in, with a toothbrush 8 in his hand. 9 fearing that he might forget the important news, he passed me the 10 . "Morning, Wu," he said, "I saw Mr. G thismorning. He told me that a letter had arrived in his office for you from Manchester University, and asked you to go and get it 11 possible." I jumped with 12 . I even didn't 13 my breakfast and rushed to Mr. G's office but he wasn't 14 . I then went to the secretary's room and 15 everything to her. She opened Mr. G's room. I looked at everything. There didn't seem to be a letter for me. "If he had asked you to pick it up from here," said the secretary, "he would have put it in 16 or simply left it to me." Greatly 17 , I walked out of the room and 18 the secretary lock it. 19 the secretary's eyes 20 . "Sorry," she said. "It's April Fool's Day!" ( )1. A. sometimes ( )2. A. staying ( )3. A. continued ( )4. A. returned ( )5. A. people ( )6. A. application ( )7. A. dinner ( )8. A. still ( )9. A. Because of ( )10. A. message ( )11. A. if ( )12. A. the news ( )13. A. take ( )14. A. anywhere ( )15. A. asked ( )16. A.the office ( )17. A. disappoi ( )18. A. watched ( )19. A. Quickly ( )20. A. closed B. never B. working B. planned B. taken B. colleges B. report B. lunch B. even B .As if B. sign B. as soon as B. the letter B. finish B. in B. told B.his desk B. disappoin B. made B. Strangely B. opened C. always C. visiting C. managed C. handed C. cities C. reply C. supper C. yet C. After C. letter C. when C. joy C. complete C. at C. explained C.the room C. disappointing C. saw C. Finally C. brightly D. seldom D. studying D. remembered D. sent D. offices D. chance D. breakfast D. already D. While D. notice D. as fast as D. luck D. have D. away D. answered D.an obvious (明显的) place D. disappointment D. let D. Suddenly D. darkened 查看答案
题型:单项选择题 手把置于一位充风至定压稳定后移至三位保压。先进行一端的差压阀性能试验,将此端一侧的空气弹簧压力由空气弹簧压力表上塞门缓慢排风,使之两侧的空气弹簧压力差超过200KPa,然后关闭塞门停止排风待空气弹簧压力稳定后,检查这两侧空气弹簧压力差不得超过()KPa,合格后排另一侧空气弹簧风压,检查方法及要求同上。A.130±20kpaB.140±20kpaC.150±20D.160±20 查看答案
题型:单项选择题 Distress signal are always stored in the memory so as to start().A.local-mode coverageB.SAR operationsC.data processD.continuous broadcast 查看答案