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【简答题】
随机抽取某产品n件，测得其长度分别为a 1 ，a 2 ，…，a n ，则如下图所示的程序框图输出的s=（ ），s表示的样本的数字特征是（ ）。 （注：框图中的赋值符号“=”也可以写成“←”或“：=”）
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举一反三
【单选题】What can we learn from paragraphs 2 to 4?
A.
Instinctive behavior refers to spiders spinning their webs.
B.
Culture is something that all human beings are born with.
C.
Different cultures have different basic needs.
D.
Different cultures lead to different ways of living.
【单选题】What can we learn from the Florida study?
A.
. Followup studies should last for one year.
B.
. Volunteers should get mentally prepared.
C.
. Strategy training is a must in research.
D.
. Volunteers are provided with concrete advice.
【单选题】What can we learn from the fifth paragraph?
A.
Students tend to have prejudices against other cultures.
B.
Students are keen to find a constructive way to contribute to the world.
C.
Students will live in a pluralistic society at college.
D.
Students should learn to understand and appreciate people from other cultures.
【单选题】What can we learn about the Financial Aid Office?
A.
It might help to solve the man’s problem.
B.
It is open to poor students.
C.
It is a place where a lot of students go and meet.
D.
It will not lend money to the man.
【单选题】What can we learn about the man in the sports clothes?
A.
He is the secretary of the squash club.
B.
He wants to be captain of a squash team.
C.
He wants to learn from the man in the suit.
D.
He is proud of having his friends watching.
【简答题】( )( )( )是课程目标的三个来源。
【单选题】what can we learn from the conversation?
A.
It will get warmer soon.
B.
. It may get even colder.
C.
This is the coldest winter ever.
D.
The weather has never been so bad before.
【单选题】幼儿园课程目标的三个来源是( )
A.
对家庭的研究、对社会生活的研究、对学校的研究
B.
对政治的研究、对历史的研究、对社会生活的研究
C.
对幼儿的研究、对社会生活的研究、对学科知识的研究
D.
对幼儿的研究、对世界观的研究、对学科知识的研究
【简答题】( )( )( )是课程目标的三个来源。
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