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【简答题】
一个总体中有100个个体，随机编号为0，1，2，…，99，依编号顺序平均分成10个小组，组号依次为1，2，3，…，10．现用系统抽样方法抽取一个容量为10的样本，规定如果在第1组随机抽取的号码为m，那么在第k小组中抽取的号码个位数字与m+k的个位数字相同．若m=6，则在第7组中抽取的号码是 ______．
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【简答题】阅读理解。 If you are like most people, your intelce (智力) changes with the seasons, you are probably a lot sharper in the spring than you are at any other time of year. A famous scientist, Ellsworth H...
【判断题】Climate changes like global warming is the result of human practices. ( )
A.
正确
B.
错误
【简答题】叶片式空气流量计缓冲器的作用是减小发动机进气量急剧变化时引起的测量叶片 。A. 脉动
【单选题】Climate changes like global warming is the result of human activities such as________.
A.
Burning fossil fuels.
B.
Farming.
C.
Fishing.
D.
Polluting water.
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【简答题】叶片式空气流量计缓冲器的作用是（）。
【单选题】What would Kousky like to do with La events?
A.
To predict the climate conditions.
B.
To measure the changes of climate.
C.
To predict natural disasters.
D.
To measure damage precisely.
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