原书 PDF 第 1611 页
Dr. Lorber insists that language cannot be turned at will into a sort of an algebra under the rule of strictness and fixity. (日本模拟题)
The automobile industry is manufacturing A a new type of a motor C that will consume less D gasoline and cause much less pollution. (全国研考)
After reviewing the troops, the visiting general commented that he had finally seen the kind of a soldier that the nation needs. (TOEFL)
[参见 what kind of(a)]
Various types of reactor have been designed and constructed for a number of different purposes. (STE)
句中的 various types of reactor 的用法是否正确？
various types of reactor 和 various types of reactors 的说法都是正确的,请看下面的例证(参见 these sort of):
So certain types of plant grow all over the stones and their roots go down into the holes between the stones. 因此，石头上面全都长满了某些种类的植物，它们的根都长到石头缝隙中去了。
Scientists continue to develop new types of plants which produce heavier crops. 科学家们继续培育新型的高产农作物。