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【单选题】
数据的清理不包括：A.
数据的编码与录入
B.
依据数据载体类型、研究问题，评估数据的完整性
C.
依据研究问题，确认数据是否需要加工
D.
依据研究问题，评估错误的来源
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反馈参考答案：
举一反三
【简答题】How much was the stock valued at? It was valued at ______.
【简答题】折半查找 function binsearch(k:keytype):integer var low,hig,mid:integer
【单选题】What reason is given for staff not always being involved in decisions about change?
A.
A high level of resistance to the changes is expected.
B.
The different stages add up to a highly complex process.
C.
Far too many staff may be affected for this to be practical.
D.
The urgency of a situation does not allow for lengthy consultation.
【单选题】The author thinks the work of a housewife is ______.
A.
usually highly valued by the husband
B.
valued for its quality by the husband
C.
valued for the satisfaction it brings to the husband
D.
usually not valued by the husband
【单选题】网站的robots.txt的作用是什么?
A.
告知用户本网站有robots.txt中列出的子站点
B.
方便网络爬虫爬取本站数据
C.
供开发者查阅,方便网站开发
D.
告知爬虫robots.txt中列出的子站点不要爬取
【简答题】Robots.txt文件的作用是禁止搜索引擎抓取网站中某些内容,存放位置是 ( )
【简答题】Robots.txt文件的作用是禁止搜索引擎抓取网站中某些内容,存放位置是 ( )
【单选题】which operation can change a gray image into a two-valued image? ( )
A.
Thresholding
B.
Averaging
C.
Smoothing
D.
Sharpening
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