小明同学阅读了下表后,归纳了一些结论,其中正确的是( ) 0℃、1标准大气压下部

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问题:

小明同学阅读了下表后,归纳了一些结论,其中正确的是(  )

0℃、1标准大气压下部分物质的密度(千克/米3
1.0×1030.9×103
水银13.6×103干松木0.4×103
酒精0.8×1038.9×103
煤油0.8×1032.7×103

A.不同物质的密度一定不同

B.固体物质的密度一定比液体物质大

C.同种物质的密度一定相同

D.质量相同的实心铜块和铝块,铜块的体积较小

考点:密度及其特性密度公式的应用
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第二节   完形填空(共20小题,每小题1.5分,满分30分)

Teaching second grade is always a challenge. Each student arrives at school with his own needs and difficulties. One year a student called Billy   36   me with his behavior as well as his academic requirements. He struggled daily with his   37   emotions and often became angry or violent. I knew that, to make   38   progress, his emotions needed controlling. 

One   39   I tried to help Billy was to have him come directly into the classroom when he arrived at school. Billy’s mom would   40   me to alert (警告) me to a particularly emotional morning at home. Then, I would focus on   41   his anger and calming him down before the other students arrived.

One week our class was studying   42  . I thought one way to bring learning into the classroom was to bring my dog Rocky to school for the day.

That day began as normal. I was preparing activities focused on dog themes   43   I was told that Billy had a   44   morning at home and I might need to get him   45  . As I was talking to his mom, Billy   46   into the classroom. To Billy’s   47  , Rocky immediately ran up to his new   48  , wagging his tail and licking Billy’s face with doggy affection. Billy couldn’t   49   Rocky’s charm (魅力) and began laughing as his anger melted away.

Throughout the day, Billy never left Rocky’s side, feeding him, being gentle with him and even   50   the other students while Rocky was sleeping.

Billy was known for doing anything he could to avoid   51  , but on this day he found a good dog story, “Clifford’s Puppy Days,” and read it to Rocky. How   52   I was at the sight of Billy reading happily!My little dog was able to   53   Billy’s day from one of anger and frustration to one of laughter, gentleness and   54  .

That day Rocky more than helped me with my   55  ; he helped to change the life of a child! After that Billy’s behavior definitely improved.

36. A. challenged     B. cheated C. benefited    D. betrayed  

37. A. unforgettable    B. uncontrollable    C. unconscious       D. unfortunate   

38. A. physical         B. mental      C. academic         D. authentic 

39. A. advantage      B. agenda      C. reason             D. way

40. A. awake        B. call          C. visit             D. sign

41. A. tolerating       B. observing     C. relieving          D. ignoring

42. A. emotions       B. pets          C. botany          D. diet   

43. A. after      B. as          C. when             D. before

44. A. boring    B. fantastic       C. busy               D. rough

45. A. settled    B. punished      C. treated              D. excited

46. A. fled            B. stormed       C. jogged              D. floated

47. A. surprise         B. delight     C. shame         D. fear

48. A. protector       B. trainer       C. friend         D. owner

49. A. resist          B. describe       C. reduce         D. forget

50. A. educating    B. envying   C. comforting     D. quieting

51. A. exploding      B. reading C. arguing            D. apologizing

52. A. surprised       B. disappointed C. amused         D. confused

53. A. urge          B. shorten        C. transform          D. expand

54. A. admiration   B. curiosity  C. anxiety           D. love

55. A. family       B. teaching        C. housework         D. performance

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八味丸功效与作用

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硬膜外阻滞对中枢神经系统的直接影响除外()

A.注药时脑脊液压升高,引起短暂头晕

B.麻醉后低血压时脑缺氧惊厥

C.麻醉后血管散热不均产生寒战

D.局麻药直接进入静脉引起惊厥

E.长时间间断累积给药中毒产生精神症状与幻觉

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根据我国学者对儿童观察力发展阶段的研究,小学中年级儿童大部分属于认识的 ( )

A.个别对象阶段

B. 空间联系阶段

C.因果联系阶段

D.对象总体阶段

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无法按期进行检查的储罐,由二级单位设备管理部门申请,二级单位()管理部门、工艺副总签署意见,二级单位机械副总审核后,上报公司机动设备处,同时制定科学合理的监控运行措施和应急预案,提出准确的下次检查时间。

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