资本市场的效率有哪几种

对10Mbps网络上的任意两个节点之间，不能超过（）中继器，或共享集线器。

A、2个

B、4个

C、5个

D、1个

男性，30岁，矿工，井下作业时发生塌方砸伤背部，当即倒于地上，下肢无力，不能行走，立即就诊。检查见胸腰段后凸畸形并压痛，双下肢不全瘫。感觉异常平面位于双侧腹股沟水平。

如果伤后病人腹胀、腹痛、大便秘结，可能是由于

A．腹膜后血肿刺激

B．直肠损伤

C． * * 损伤

D．膀胱损伤

E．肾脏损伤

We may look at the world around us, but somehow we manage not to see it until whatever we've become used to suddenly disappears.  36 , for example, the neatly-dressed woman I 37 to see -- or look at -- on my way to work each morning.

For three years, no matter  38 the weather was like, she was always waiting at the bus stop around 8:00 am. On  39  days, she wore heavy clothes and a pair of woolen gloves. Summertime  40  out neat, belted cotton dresses and a hat pulled low over her sunglasses. 41  , she was an ordinary working woman. Of course, I  42  all this only after she was seen no more. It was then that I realized how  43 I expected to see her each morning. You might say I   44  her.

“Did she have an accident? Something  45 ?” I thought to myself about her  46 .  Now that she was gone, I felt I had  47 her. I began to realize that part of our  48   life probably includes such chance meetings with familiar 49 : the milkman you see at dawn, the woman who 50  walks her dog along the street every morning, the twin brothers you see at the library. Such people are   51  markers in our lives. They add weight to our  52  of place and belonging.

Think about it.   53  , while walking to work, we mark where we are by  54 a certain building, why should we not mark where we are when we pass a familiar, though  55 , person?

36. A. Make               B. Take           C. Give               D. Have

37. A. happened          B. wanted         C. used                  D. tried

38. A. what                B. how                 C. which                 D. when

39. A. sunny               B. rainy           C. cloudy            D. snowy

40. A. took               B. brought         C. carried            D. turned

41. A. Clearly              B. Particularly      C. Luckily              D. Especially

42. A. believed             B. expressed        C. remembered         D. wondered

43. A. long               B. often            C. soon               D. much

44. A. respected            B. missed             C. praised            D. admired

45. A. better               B. worse               C. more              D. less

46. A. disappearance        B. appearance           C. misfortune         D. fortune

47. A. forgotten            B. lost                 C. known             D. hurt

48. A. happy               B. enjoyable            C. frequent           D. daily

49. A. friends             B. strangers            C. tourists            D. guests

50. A. regularly            B. actually             C. hardly             D. probably

51. A. common             B. pleasant           C. important          D. faithful

52. A. choice              B. knowledge           C. decision            D. sense

53. A. Because             B. If                C. Although           D. However

54. A. keeping             B. changing         C. passing             D. mentioning

55. A. unnamed             B.unforgettable         C. unbelievable        D. unreal

把质量为500g、温度为40℃的铝块加热到100℃，铝块吸收了多少热量？如果这些热量用来给水加热，能使多少20℃水升高到40℃？[c_铝=0.88×10³J·（kg·℃）^﹣1]．

动产质权自出质人交付质押财产时设立。

A、正确

B、错误