题目内容：
因为正常人的红细胞数近似服从正态分布，且此指标过大、过小均有病理意义，故制定红细胞数的95%参考值范围易用公式（ ）。
A.见图A
B.见图B
C.见图C
D.见图D
参考答案：
答案解析：
选择题：因为正常人的红细胞数近似服从正态分布，且此指标过大、过小均有病理意义，故制定红细胞数的95%参考值范围易用公式（ ）。
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- 题目类型：选择题
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