Palmer, the British applied linguist, produced a guide to the English vocabulary needed for teaching English as a foreign language. The words are chosen for the following criteria EXCEPT______.

A．they are the words most frequently used by people whose native language is English

B．they include words useful to build other words

C．they include all the structural words

D．they include all the descriptive words

依据物质的相关数据，可以推断物质的结构和性质．下列利用物质的相关数据作出的相应推断不合理的是（　　）

A．依据元素的原子序数，推断该元素原子的核外电子数

B．依据气体的摩尔质量，推断相同状况下不同气体密度的大小

C．依据物质摩尔质量，推断物质熔、沸点的高低

D．依据液体物质的沸点，推断用蒸馏法分离两种互溶液态物质组成的混合物的可行性