单选题When MiShel gave birth to her first girl, the new sperm-separation technique _____.Ahad already been well-developedBhad not been declared successfulCwas available to those who wanted itDhad been widely accepted in the medical world
单选题
When MiShel gave birth to her first girl, the new sperm-separation technique _____.
A
had already been well-developed
B
had not been declared successful
C
was available to those who wanted it
D
had been widely accepted in the medical world
参考解析
解析：
第一段第六句作者提到因为这对英国夫妇要求选择孩子的性别，因此他们就来到了美国弗吉尼亚州，这里有一种新的分离精子的技术称作MicroSort（微分类），当时正在试验阶段（指1999年）。
第一段第六句作者提到因为这对英国夫妇要求选择孩子的性别，因此他们就来到了美国弗吉尼亚州，这里有一种新的分离精子的技术称作MicroSort（微分类），当时正在试验阶段（指1999年）。
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