聚类(clustering)是这样的过程:它找出描述并区分数据类或概念的模型(或函数),以便能够使用模型预测类标记未知的对象类。
参考答案:错
读某区域等压面垂直剖面图,完成第27题:
图中气压最高的是
A.甲
B.乙
C.丙
D.丁
No matter ____ he is, he must ____ and don't use his cell phones in the class. [ ]
A. what; obey the rules
B. who; obey the rules
C. that; obey the rule
D. where; obey the rule