由样本统计量来估计总体参数时,要求估计量的方差尽可能的小,这是满足了评价估计量标准的

题型:单项选择题

问题:

由样本统计量来估计总体参数时,要求估计量的方差尽可能的小,这是满足了评价估计量标准的( )。

A.无偏性

B.一致性

C.同质性

D.有效性

考点:统计师考试统计基础理论及相关知识统计师中级统计基础理论及相关知识真题2013年
题型:单项选择题

根据国家统一的会计制度,会计核算软件必须提供()功能。

A.防止病毒入侵

B.防止黑客入侵

C.外国文字自动翻译成中文

D.人员岗位和操作权限设置

题型:单项选择题

After a short ________, I got my bag from the thief’s hand successfully.[    ]

A. exchange  

B. explanation  

C. encouragement    

D. struggle

题型:单项选择题

雷达天线的基本构成形式有()。

A、反射面天线

B、平面阵列天线

C、散射面天线

D、圆形天线

题型:单项选择题
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,选出一个可以填入空白处的最佳选项)。
Children find meanings in their old family tales.
When Stephen Guyer’s three children were growing up, he told them stories about how his grandfather, a banker,   1  all in the 1930s, but did not lose sight of what he valued most. In one of the darkest times   2  his strong-minded grandfather was nearly  3  , he loaded his family into the car and   4   them to see family members in Canada with a   5  , “there are more important things in life than money”.
The   6  took on a new meaning recently when Mr. Guyer downsized to  7   house from a more expensive and comfortable one. He was  8     that his children, a daughter, 15, and twins, 22, would be upset.To his surprise, they weren’t.  9     , their reaction echoed (共鸣) their great-grandfather’s.What they 10   was how warm the people were in the house and how  11    of their heart was accessible.
Many parents are finding that family stories have surprising power to help children
  12   hard times. Storytelling experts say the phenomenon reflects a growing   13    in telling tales, evidenced by a rise in storytelling events and festivals.
A university   14   of 65 families with children aged from 14 to 16 found kids’ ability to 15  parents’ stories was linked to a lower rate of anger and anxiety.
The  16  is telling the stories in a way children can 17   . We’re not talking here about the kind of story that  18  , “ When I was a kid, I walked to school every day uphill both ways, barefoot in the snow.” Instead, we should choose a story suited to the child’s 19 , and make eye contact (接触) to create “a personal experience”. We don’t have to tell children 20   they should take from the story and what the moral is.
小题1:
A.missedB.lost C.forgotD.ignored
小题2:
A.when B.whileC.howD.why
小题3:
A.friendlessB.worthlessC.pennilessD.homeless
小题4:
A.fetchedB.allowedC.expectedD.took
小题5:
A.hopeB.promiseC.suggestionD.belief
小题6:
A.taleB.agreementC.arrangementD.report
小题7:
A.largeB.smallC.newD.grand
小题8:
A.surprisedB.annoyedC.disappointedD.worried
小题9:
A.ThereforeB.BesidesC.InsteadD.Otherwise
小题10:
A.talked aboutB.cared aboutC.wrote aboutD.heard about
小题11:
A.much B.manyC.little D.few
小题12:
A.beyondB.overC.behindD.through
小题13:
A.argumentB.skillC.interestD.anxiety
小题14:
A.studyB.designC.committeeD.staff
小题15:
A.provideB.retellC.supportD.refuse
小题16:
A.troubleB.giftC.factD.trick
小题17:
A.performB.writeC.bearD.question
小题18:
A.meansB.endsC.beginsD.proves
小题19:
A.needsB.activitiesC.judgmentsD.habits
小题20:
A.thatB.whatC.whichD.whom
题型:单项选择题

哪一种药物的口服吸收不受合用碱性药影响()

A.氯霉素

B.红霉素

C.四环素

D.酮康唑

E.环丙沙星

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