19. 

Some anthropologists regard the early hominids' manner of walking as being less efficient than in modern human beings.

(A) as being less efficient than in

(B) as less efficient than it is in

(C) as less efficient than that of

(D) to be less efficient than that of

(E) to have been less efficient than it is in

C正确 错选D

ABE 明显排除

regard as/to be  在这里有什么区别呢？

我怎么觉得d 更加清楚呢

是否有  regard sth as adj 这样的表达习惯呢？

sure ！

谢谢解答我的问题

这几天重新总结prep

觉得是比 gwd 更加权威和有意义的 题库

可是语法区的讨论真的不是很完善呵

之前gwd 都是04年的nn 热烈讨论的

prep 应该交给我们07一辈的了

Perhaps. Both in Longman and in the GMAT qeustions, we can find such

examples as  "regard somehting as unmoral", or" viewed something as very

good".