age-sex distribution 年龄性别分布
their sex role distribution 性别角色类型分布
No significant differences were seen about their age and sex distribution.
它们在年龄及性别分布上无明显差别(P〉0.05)。
·2,447,543篇论文数据，部分数据来源于NoteExpress
DC, such agencies have the cultural nous to deal with the messy business of sex and the distribution channels to reach the farthest-flung lovers.
ECONOMIST: Go forth and don��t multiply
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