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【单选题】
“便秘”能够体现出消化道的哪一功能( )
A.
胃具有吸收水、无机盐和酒精的功能
B.
大肠具有合成和吸收某些维生素的功能
C.
小肠是营养物质消化吸收的主要场所
D.
大肠具有吸收水分的功能
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【简答题】With the rapid development of science and technology, the mobile phone has got more and more functions. It can be not only to communicate and access to the web, but also to play mp3,watch television, ...
【多选题】下列关于定性调研的描述正确的有( )。
A.
属于探索性调查
B.
要做一些数量计算
C.
不需要抽取概率样本
D.
由调查人员主观地找一些人来接受调查就可以了,而且人数不需要很多
E.
调研结果可以用来推断总体
【多选题】以下 对探索性调研描述正确的 有 ( )
A.
探索性 调研一般在调研早期进行
B.
探索性 调研 需要 提出假设
C.
它还 可以被用了 使 调研人员更加熟悉问题
D.
调研在增长见识和建立假设方面具有灵活性的特点
【单选题】当变量成倍数关系变化时,均值选择
A.
算数均数
B.
几何均数
C.
中位数
D.
众数
E.
都不对
【简答题】With the rapid development of the Internet, more and more people have access to it for information, entertainment and even education. As a new means of education, online education has caused much publ...
【简答题】With the fast development of China, more and more citizens have bought cars. That means the number of cars running on the roads of China is increasing. This also brings a serious problem:air pollution...
【简答题】With the development of the society, more and more ordinary people are engaged in charity activities. Accordingly, a new form. of charity comes into being, that is, micro-charity, in which ordinary pe...
【判断题】It is regarded that money supply is good to the economic development , the more the better.
A.
正确
B.
错误
【简答题】概述江南古镇空间构成特点。
【判断题】The more development you want to make, the more failure you might encounter. So, people are facing with failure now and then.
A.
正确
B.
错误
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