以下是引用crossmoon在2004-6-6 13:01:00的发言：

1. Not all employment selection mechanisms that have a “disparate effect,” that is, that screens out a percentage of minorities or women disproportionate to their presence in the relevant labor market, are unlawful. (A) that is, that screens out a percentage of minorities or women disproportionate to (B) which means, that screens out a percentage of minorities or women disproportionate with (C) which means, that screen out a percentage of minorities or women disproportionate with (D) that is, that screen out a percentage of minorities or women disproportionate to（D） (E) that is, that screens out a percentage of minorities or women disproportionate with D 第三个 that 语法上什么作用？ 是否是对mechanisms的进一步解释说明，和第一个that并列。 that is作插入语，把that is改成and语法逻辑上正确嘛？