在上篇文章的“测试优先的开发方法”这一部分中我已经提到了验收测试，把它作为整个XP测试中由客户负责的那一半。
As I mentioned in the test-first development practice section of last month's installment, acceptance testing is the customer half of the XP testing picture.
通过这样的方法发现，在患有糖尿病的那组中，其血液细胞中大约有一半是母血细胞；而在第二组中，母血细胞在其血液细胞中占三分之一；而第三组中母血细胞在其血液细胞中所占比率不到五分之一。
The technique found maternal cells in about half the diabetics' samples, but in only about one-third of the healthy siblings' samples and in less than one-fifth of those from the unrelated volunteers.
他估计在有三分之一到一半的呼吸暂停的患者能从新方法中获益。
He estimated that between a third and a half of apnea patients could benefit from the new method.
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