这道题为什么会选a呢？

jennyguoguo · 发表于 2003-7-12 07:55:00

Most nations regard their airspace as extending upward as high
as an aircraft can fly; no specific altitude, however, has been officially
recognized as a boundary.

a. ...
b. as the extent
c. to be an extent
d. to be an extension
e. to extend

这道题为什么会选a呢？

joywzy · 发表于 2003-7-12 08:58:00

it is idiom that regard XX as doing sth.

jennyguoguo · 发表于 2003-7-12 09:04:00

那b为什么不行呢？regard sth. as sth.

joywzy · 发表于 2003-7-12 09:06:00

以下是引用jennyguoguo在2003-7-12 9:04:00的发言：
那b为什么不行呢？regard sth. as sth.

Do you think it is logic to regard the space as the extent?

这道题为什么会选a呢？

这道题为什么会选a呢？

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