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【单选题】
随机变量X不服从正态分布,只要样本含量足够大,样本均数的抽样分布将________。
A.
服从F分布
B.
服从t分布
C.
近似服从正态分布
D.
服从标准正态分布
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举一反三
【判断题】汇率风险也称为外汇风险。
A.
正确
B.
错误
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【单选题】Part II Reading Comprehension Directions: After reading each passage , you will find 5 questions or unfinished statements. For each question or statement there are 4 choices marked A), B), C) and D). ...
A.
They are against it.
B.
They don’t care about it.
C.
They share the same view.
D.
They differ in their opinions. 你的答案是(__)
查看完整题目与答案
【判断题】9判断题1汇率风险也称为外汇风险。( )。
A.
正确
B.
错误
查看完整题目与答案
【单选题】已有定义: int i,a[10],*p; , 则合法的赋值语句是 。
A.
p=i;
B.
p=a[5];
C.
p=a[2]+2;
D.
p=a+2;
查看完整题目与答案
【判断题】( )综合布线电缆与电力电缆的间距,当 380V电力电缆>5kV•A,有一方在接地的金属线槽或钢管中,最小间距为300mm。
A.
正确
B.
错误
查看完整题目与答案
【简答题】传统数据采集的不足
查看完整题目与答案
【单选题】采集数据时，根据不同的数据来源我们可以采取不同的采集方法，下列属于有效的数据采集方法的有（ ）。①复制数据文件 ②从信息系统导出数据 ③爬取网络数据 ④从微信企业号接口接收数据 ⑤数据采集器接收温度传感器数据
A.
①②③④
B.
①③④⑤
C.
②③④⑤
D.
①②③④⑤
查看完整题目与答案
【单选题】下列不属于信息采集的手段是()。
A.
利用传统工具采集
B.
利用专业工具采集
C.
利用数据交易手段采集
D.
利用网络采集
查看完整题目与答案
【单选题】As a medium of exchange, money permits the separation of exchange into the two distinct acts of buying and selling, without requiring the seller to purchase goods from the person who buys his products...
A.
you have to sell something in order to buy something
B.
you have to buy something in order to sell something
C.
you don't have to buy something in order to sell something
D.
the seller and the purchaser are the same person
查看完整题目与答案
【单选题】听力原文： (32)Your assignments this term will be to write two major research papers．One of the most important things about writing a research paper is giving proper credit of your resources of information...
A.
Reading magazine articles.
B.
Reviewing book reports.
C.
Writing research papers.
D.
Selecting information sources.
查看完整题目与答案
相关题目：
【判断题】汇率风险也称为外汇风险。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Part II Reading Comprehension Directions: After reading each passage , you will find 5 questions or unfinished statements. For each question or statement there are 4 choices marked A), B), C) and D). ...
A.
They are against it.
B.
They don’t care about it.
C.
They share the same view.
D.
They differ in their opinions. 你的答案是(__)
查看完整题目与答案
【判断题】9判断题1汇率风险也称为外汇风险。( )。
A.
正确
B.
错误
查看完整题目与答案
【单选题】已有定义: int i,a[10],*p; , 则合法的赋值语句是 。
A.
p=i;
B.
p=a[5];
C.
p=a[2]+2;
D.
p=a+2;
查看完整题目与答案
【判断题】( )综合布线电缆与电力电缆的间距,当 380V电力电缆>5kV•A,有一方在接地的金属线槽或钢管中,最小间距为300mm。
A.
正确
B.
错误
查看完整题目与答案
【简答题】传统数据采集的不足
查看完整题目与答案
【单选题】采集数据时，根据不同的数据来源我们可以采取不同的采集方法，下列属于有效的数据采集方法的有（ ）。①复制数据文件 ②从信息系统导出数据 ③爬取网络数据 ④从微信企业号接口接收数据 ⑤数据采集器接收温度传感器数据
A.
①②③④
B.
①③④⑤
C.
②③④⑤
D.
①②③④⑤
查看完整题目与答案
【单选题】下列不属于信息采集的手段是()。
A.
利用传统工具采集
B.
利用专业工具采集
C.
利用数据交易手段采集
D.
利用网络采集
查看完整题目与答案
【单选题】As a medium of exchange, money permits the separation of exchange into the two distinct acts of buying and selling, without requiring the seller to purchase goods from the person who buys his products...
A.
you have to sell something in order to buy something
B.
you have to buy something in order to sell something
C.
you don't have to buy something in order to sell something
D.
the seller and the purchaser are the same person
查看完整题目与答案
【单选题】听力原文： (32)Your assignments this term will be to write two major research papers．One of the most important things about writing a research paper is giving proper credit of your resources of information...
A.
Reading magazine articles.
B.
Reviewing book reports.
C.
Writing research papers.
D.
Selecting information sources.
查看完整题目与答案