Prep一道纠结的题目，求指点～

酱子啊

找到了一道类似题：
PREP 2旧 23.  [OG原题，OG10-264]

Scientists believe that unlike the males of most species of moth, the male whistling moths of
Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory
ones, and they attract their mates during the day, rather than at night.

(A) by the use of acoustical signals, but not olfactory ones, and they attract
(B) by the use of acoustical signals instead of using olfactory ones, and attracting
(C) by using acoustical signals, not using olfactory ones, and by attracting
(D) using acoustical signals, rather than olfactory ones, and attract
(E) using acoustical signals, but not olfactory ones, and attracting

答案是D，同样排除了by using这个用法（尽管通过句意也可以排除）
但是是否说明by 和use的用法重复呢？

期待NN讨论~

-- by 会员 幸运四叶草 (2011/10/22 0:25:54)

BY是通过什么什么的方式，而这里并没有这层意思呢
我的理解

幸运四叶草

幸运四叶草