求教3道语法题，关于FEWER OF和LESS OF！！！！！

Latiaslee

937.With a total population of less than two hundred and fewer breeding females than ever before, the American crocodile seemed a decade ago to be in danger of disappearing.
(A) of less than two hundred and fewer
(B) lower than two hundred and less
(C) lesser than two hundred and fewer
(D) fewer than two hundred and less
(E) of fewer than two hundred and of fewer
the key:A



943.With total sales of less than three hundred thousand dollars and fewer new subscribers than last year, the New England Theatre Company is in danger of losing its building.
(A) of less than three hundred thousand dollars and fewer
(B) lower than three hundred thousand dollars and less
(C) lesser than three hundred thousand dollars and fewer
(D) fewer than three hundred thousand dollars and less
(E) of fewer than three hundred thousand dollars and of fewer
the key:A
请问这两题为什么第一个不是FEWER OF而是LESS OF？




613.Sales of United States manufactured goods to nonindustrialized countries rose to $167 billion in 1992, which is 14 percent more than the previous year and largely offsets weak demand from Europe and Japan.
(A) which is 14 percent more than the previous year
(B) which is 14 percent higher than it was the previous year
(C) 14 percent higher than the previous year’s figure
(D) an amount that is 14 percent more than the previous year was
(E) an amount that is 14 percent higher than the previous year’s figure
the key:E
为什么这个B不对呢？

谢谢～～～～～～～～～～～～～～～～～～～～～～～～～～

sdcar2010

Use less when you are comparing pure numbers or dealing with measurement, time and money.

613.  In B, there is an extra "it was the."