题目：
正常精液未成熟生精细胞应为（）
A.<1％
B.<4％
C.<5％
D.<3％
E.<2％
答案：
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演奏 凑合 弟弟 传递垂询 唾沫 涌现 拥挤(答案不唯一)
正常精液未成熟生精细胞应为（） A. B. C. D. E.
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题型：单项选择题
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