生育上的这场革命,在某种意上上说,是在60年代初期出现口服避孕药时开始的。数百年来,妇女们曾使用过各种方法避孕。但是只有在简便而又可靠的避孕药出现后才使她们习惯于既能过性生活而又不必担心生孩子。既然过性生活可以不受孕,那么,反过来为什么不能在不过性生活的情况下受孕呢?到了70年代初,越来越 This revolution in fertility, in a sense, began when oral contraceptives were introduced in the early 1960s. For hundreds of years, women have used various methods of contraception. However, it is only when simple and reliable birth control pills appear that they are used to having sex without having to worry about giving birth. Since sexual life can not conceive, then, in turn, why not conceive in the case of sexual life? To the early 70s, more and more