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个体繁衍为生物之本能,人类也是如此,只不过人类为万物之灵长,其自身繁衍过程除具有生物学自然属性外,还具有社会学属性。 中老年妇女希望怀孕者并不多见,但也有少数人由于种种原因仍希望生儿育女。 50岁以上妇女受孕机率已很小。1990年
The multiplication of an individual into the instinct of a creature is also true of mankind, except that human beings are the primate creatures of all things, and their own multiplication process has sociological attributes in addition to having biological natural attributes. Older women hope that pregnant women are rare, but there are a few people still want to have children because of various reasons. Women over the age of 50 have a low probability of conception. 1990