一个基本的语法问题,LESS/LOWER, MORE/GREATER

错了好几个这样的题..想问问到底这两个有什么区别..

24.   (25819-!-item-!-188;#058&002130)

Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.

(A) less than they did

(B) less than it did

(C) less than they were

(D) lower than

(E) lower than they were

答案:A

66.   (28087-!-item-!-188;#058&003498)

Africa's black rhino population in the mid-1970's numbered about 20,000, ten times the estimated population of 2,000 in 1997.

(A) the estimated population

(B) that of their estimated population

(C) more than the population's estimated amount

(D) more black rhinos than their population estimate

(E) more than that of their population's estimated amount

答案:A

LESS/LOWER, MORE/GREATER，总结一下这类题目多看几遍就能够明白了。

这里贴上个manhattan的解释供lz参考：