在K-Means聚类分析中，初始聚点的选择方法有（）.A.根据经验选择

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问题单项选择题

在K-Means聚类分析中，初始聚点的选择方法有（）.

A.根据经验选择

B.随机选择

C.将全部样本人为地或者随机的进行划分，以每类的重心为聚点

D.以上都可以

答案

参考答案：D

填空题

单词拼写

1. The post office will issue a__________( 一系列的) of new stamps.

2. I came back to school for the _______( 目的 , 意图) of

being admitted to a better university.

3. The teacher was _______( 完全地) satisfied with what the students had done.

4. The boy hid himself behind the ______( 窗帘) arid looked out through the window.

5. Because he didn't finish the work on time and was fired by the boss,he was very u______

( 不安的) about it.

6. They come from Germany. They're G_______( 德国人).

多项选择题

唐代《外台秘要》将损伤分为（）

A.新伤

B.宿伤

C.外损

D.内伤

E.急伤