下面不是网络层的功能的上A.路由选择 B.流量控制 C.建立连接 D.分组和重组

题型:单项选择题

问题:

下面不是网络层的功能的上

A.路由选择

B.流量控制

C.建立连接

D.分组和重组

考点:计算机等级考试网络技术三级网络技术笔试7
题型:单项选择题

对于平面α和异面直线m,n,下列命题中真命题是(  )

A.存在平面α,使m⊥α,n⊥α

B.存在平面α,使m⊂α,n⊂α

C.存在平面α,满足m⊥α,nα

D.存在平面α,满足mα,nα

题型:单项选择题

负载转速是选定发电机与发动机传动比的主要依据。

题型:单项选择题

完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

I grew up in a tiny Baltimore row house in a faraway mountain area.My parents  36   the necessities of life   37   they couldn’t give much more.If I asked my father   38   a pair of jeans,he would say,“If you want them,make the money and buy them  39  .”He wasn’t being mean;he just couldn’t   40   them.From age 12 on,I did part-time jobs after school.

When I   41   from high school,I joined the navy.Soon I was in a boot camp(新兵训练营) at Parris Island,S.C.,where I learned that life in the navy centered around completing daily   42  .These could be anything from cleaning the camp to conducting mock(模拟的) battles.Completing these tasks successfully   43   discipline,team-work and responsibility.It didn’t  44  whether you were black,white or Asian;everyone worked together for the  45   of the company.

I went   46   to graduate from the U.S.Naval Academy and later became an officer in the navy.The part of my job I   47   most was the consueling(咨询) meetings I   48   with the family members of the men and women in my   49  ,trying to help them deal with the long periods of   50  .These proved popular and word of them spread.   51   I was being asked to give encouraging   52   to business groups,educators and kids across the country.

But I consider the boot camp my first real  53 ,and my life is still guided by the  54   lessons I learned there.It taught me discipline,friendship and the pride related to setting a task every day and working hard to   55   it.

36.A.provided              B.got                           C.made                        D.bought

37.A.while                   B.but                           C.so                             D.or

38.A.about                   B.with                          C.for                            D.of

39.A.themselves            B.ourselves                   C.yourself                    D.myself

40.A.pay                      B.find                          C.produce                     D.afford

41.A.came                    B.returned                    C.escaped                     D.graduated

42.A.drills                    B.tasks                         C.exercises                   D.reports

43.A.included               B.asked                        C.required                    D.met

44.A.matter                  B.mean                        C.exist                         D.work

45.A.good                    B.boss                          C.rest                           D.right

46.A.out                       B.on                                   C.away                         D.off

47.A.took                     B.hated                        C.enjoyed                     D.did

48.A.ended                   B.began                        C.continued                  D.held

49.A.charge                  B.situation                    C.position                     D.choice

50.A.lessons                 B.meetings                   C.training                     D.separation

51.A.Long before                                             B.Before long

C.As usual                                                       D.Once again

52.A.performances                                           B.descriptions

C.speeches                                                       D.gifts

53.A.vacation               B.place                         C.job                           D.travel

54.A.important             B.bitter                        C.normal                      D.difficult

55.A.gain                            B.achieve                            C.show                         D.match

题型:单项选择题

女,32岁,已婚,习惯性流产,每次自然流产均发生于妊娠6个月左右,最常见的原因可能为()

A.子宫颈内口功能不全

B.受精卵发育异常

C.卵巢发育异常

D.黄体功能不全

E.合并内科疾患

题型:单项选择题

账务调整系统在调整卡片时,系统显示该卡片的()信息。

A.上一次修改

B.当前

C.所有曾经修改

D.首次修改

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