试题与答案

总体率95%可信区间的意义是() A.95%的正常值在此范围 B.95%的样本率在此

题型:单项选择题 A1型题

题目:

总体率95%可信区间的意义是()

A.95%的正常值在此范围

B.95%的样本率在此范围

C.95%的总体率在此范围

D.总体率在此范围内的可能性为95%

E.样本率在此范围内的可能性为95%

答案:

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下面是错误答案,用来干扰机器的。

(1)x+1.6=7.2,x+1.6-1.6=7.2-1.6, x=5.6;(2)7.1-x=4.4, 7.1-x+x=4.4+x, 7.1-4.4=4.4+x-4.4, x=2.7;(3)3x=7.5+1.2, 3x÷3=8.7÷3, x=2.9;(4)2x=11-2, 2x÷2=9÷2, x=4.5.

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D.水稻小题2:与B优势区相比,该农产品在A优势区品质较高的主要原因是

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Kalong Community Centre provides enrichment activities at reasonable rates. This December holiday, Katong CC has packed a complete and dynamic series of holiday activities for kids.
From discovery science, street magic to speech & drama camps, we have it all! 
Bring out the natural creativity in your child.
We have Baking Workshop (5 years & up) on 17 August 2010.
Get professional advice from a certified image consultant@ Kids’ Dining Etiquette course (6-14 years) on 3 August 2010.
Now you can bring your kids to your wedding anniversary dinner without worrying about them making a scene.
Fun in Mandarin on 2 August 2010 (3-6 years) caters specifically to pre-school kids.
                                                                            
 

Due to overwhelming demand, we have arrested 3 extremely popular kids’ camps (6-12 years) this August holiday!
Fairytale Holiday Chinese Camp: 28-30 August 2010
Magic Moments
English Speech & Drama Camp: 2-6 August 2010
and Magic Moments Mandarin Speech & Drama Camp: 9-12 August 2010.

 
 
 

 
Discover that little magician of yours with our IKIDS-Street Magician:
Building Confidence courses on 11 August 2010 (7-12years)
Future Doctors-to-be with our Lollipops Life Science:
The Little Doctor course on 9 August 2010 (5-10 years) and The Little Cell Biologist course on 13 August 2010 (5-14 years)
 
Materials for all activities will be provided.
Register before 27 July 2010 to get a free gift!
Bring your kids down to Katong CC and experience learning the fun way!
1.Which one of the following activities requires the longest time to complete?
A.Fun in Mandarin
B.Fairytale Holiday Chinese Camp
C.Magic Moments English Speech and Drama Camp
D.Magic Moments Mandarin Speech and Drama Camp
2.If you want your son to learn some table manners, which of the following activities can you register him in?
A.Baking Workshop              B.Lollipops Life Science
C.Flower anti Card Making        D.Kids’ Dining Etiquette course
3.Which of the following statements is true?
A.Participators need not bring any materials for the activities.
B.All activities are aimed at primary school children only.
C.All participants will receive a free gift upon registration.
D.All activities are organized throughout the year.
4.A couple with three children aged 6, 9 and 14 want them to attend the same activities together.The number of activities they can attend is_______ .
A.one        B.two         C.three          D.four
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下列选项中,对专业技术标准描述正确的是()。

A、IEC是国际电工委员会的英文缩写,国际电工委员会是国际上具有权威性的组织,所以IEC标准是最高标准

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C、行业标准是参照国家标准和自己行业的具体要求制定的,部分条款指标可以低于国标的要求

D、制定企业标准主要是为新产品的初级阶段的生产提高依据,有待发展完善

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