請教一題 885 sec18-14

tai6996

14.   Unlike a hurricane, which can be observed from within, a tornado is so small that such a study has not been practical.

(A) that such a study has not been practical

(B) that studying it that way has not been impractical

(C) for such studies as this to have been impractical

(D) as to not make such a study practical（A）

(E) as to be impractical of study

想請教的是e選項中這裡用so...as to be的結構有錯嗎?

在我的觀點認為似乎並無錯誤

只是因為be impratical of的用法錯了..所以不選...

請問是這樣嗎?

[此贴子已经被作者于2004-11-10 17:52:49编辑过]

hpp920

我想语法上没有什么错, be impractical of 不是一个整体, 而是to be impractical (of study)

我理解的是逻辑上a tornado 做be impratical 的逻辑主语语意不队.be impractical  的逻辑主语应是 study.

欢迎大家扔砖!

[此贴子已经被作者于2004-11-11 9:32:18编辑过]