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当前学科:卫生统计学
题目:
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测得某地20名男青年的脉搏数(次/分)分别为70、69、73、…、67。该组资料应为()
A . 数值变量资料
B . 无序分类资料
C . 有序分类资料
D . 等级分类资料
E . 圆形分类资料
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