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【单选题】
K-means算法的核心是_________。A.
确定簇的个数
B.
样本间相似度计算
C.
样本数据标准化
D.
样本数据降维
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反馈参考答案：
举一反三
【简答题】Part 1 The interview - about 2 minutes In this part interlocutor asks questions to each of the candidates in turn. You have to give information about yourself and express personal opinions.
【简答题】PART 1 The interview — about 2 minutes In this part the interlocutor asks questions to each of the candidates in turn. You have to give information about yourself and express personal opinions.
【单选题】下列现象中______是反映船机外观方面的故障先兆。I.起动困难;II.柴油机冒黑烟;III.气缸冷却水出口温度过高;IV.漏油;V.滑油消耗量大;VI.转速不稳
A.
Ⅱ＋Ⅲ＋Ⅴ
B.
Ⅱ＋Ⅳ＋Ⅵ
C.
Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ
D.
Ⅱ＋Ⅳ＋Ⅴ
【简答题】PART 1 The interview-about 3 minutes In this part the interlocutor asks questions to each of the candidates in turn. You have to give information about yourself and express personal opinions.
【简答题】请写出利用列表标签实现如下图所示效果的HTML代码:
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