组装以性能为最重要目标的高性能计算机时,应使用以下如种磁盘?() A.USB2.0 发布时间:2020-12-01 03:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 组装以性能为最重要目标的高性能计算机时,应使用以下如种磁盘?()A.USB2.0B.PATAC.IDED.SATA
题型:单项选择题 已知△ABC的面积为22,内角A,B,C的对边分别为a,b,c,已知a=3,b=4,0<C<90°.(1)求sin(A+B)的值; (2)求cos(2C+π4)的值;(3)求向量CB,AC的数量积CB•AC. 查看答案
题型:单项选择题 女性,43岁,已婚,公务员。近5年来,坚信本单位同部门的两个同事嫉妒自己能力强,因此采取多种方式来恶意陷害、诬陷自己,因此搜集了很多所谓的证据、多次向领导反映、向法院诉讼,家人、朋友解释劝说都无法阻止其上诉。患者一直坚持工作,与其他大多数同事尚能正常交往。该患者最可能的诊断是()A.心境障碍B.妄想性障碍C.精神分裂症D.急性短暂性精神障碍E.无精神病 查看答案
题型:单项选择题 废铜屑制硫酸铜,小花同学方案为铜与浓硫酸反应,其反应原理是:Cu+2H2SO4(浓) △ . CuSO4+X↑+2H2O.小朵同学方案为:2Cu+O2 △ . 2CuO,CuO+H2SO4=CuSO4+H2O.则X是______(写化学式),较好的方案是______,其优点有(1)______,(2)______. 查看答案
题型:单项选择题 完形填空。 A young student was one day taking a walk with aprofessor, who was commonly 1 the students' friend. Asthey went 2 , they saw lying in the path a pair of oldshoes, which they supposed to 3 a poor man who wasemployed in a field 4 . The student turned to theprofessor, saying,"Let us play the man 5 : we will hidehis shoes, and 6 ourselves behind those bushes, and waitto see his 7 when he cannot find them. " "My young friend," answered the professor, "we shouldnever 8 ourselves at the 9 of the poor. But you are 10 , and may give yourself a much greater 11 bymeans of the poor man. Put a coin into each shoe, and then wewill hide ourselves and 12 how the discovery affects him. "The student did so, and they both placed themselves behindthe bushes. The poor man soon finished his work and 13 the field to the path 14 he had left his coat and shoes.While 15 his coat he slipped his foot into one of his shoes;but feeling something 16 , he stooped down (弯下腰) tofeel 17 it was, and found the coin. Astonishment andwonder were seen upon his countenance(面部表情). He thenlooked around him on all sides, but no person was to be seen.He now put the money into his pocket, and proceeded to puton the other shoe; but his surprise was 18 on finding theother coin. He fell upon his knees, looked up to heaven anduttered aloud a fervent (热烈的) thanksgiving, in which he 19 his wife, sick and helpless, and his children withoutbrea d. The student stood there 20 affected, and his eyesfilled with tears.( )1. A. held ( )2. A. along ( )3. A. get to ( )4. A. close by ( )5. A. a game ( )6. A. hide ( )7. A. pleasure ( )8. A. make ( )9. A. money ( )10. A. poor ( )11. A. pleasure ( )12. A. notice ( )13. A. came about( )14. A. where ( )15. A. wearing ( )16. A. soft ( )17. A. what ( )18. A. increased ( )19. A. spoke of ( )20. A. heavily B. kept B. on B. stick to B. far B. a trick B. have B. sorrow B. treat B. expense B. kind B. money B. watch B. came across B. on which B. dressing B. terrible B. how B. put B. told of B. slightly C. named C. over C. belong to C. faraway C. a joke C. let C. disappointment C. amuse C. value C. honest C. thought C. observe C. came into C. there C. putting on C. strange C. whether C. doubled C. talked about C. easily D. called D. back D. object to D. near D. a word D. make D. anxiety D. laugh D. pay D. rich D. good D. see D. came by D. which D. changing D. hard D. why D. reduced D. said about D. deeply 查看答案