Yup, in fact, both D and E contain the idiom " not only...but". But again, D was eliminated because it failed the follow the parallelism.
Ans D is like ' not only the
refrigeration, -tion, and -tion, but blahblah also '
VS
Ans E 'not only
the redrigeration, the -tion and the -tion, but blah blah also
'I believed the missing 'the' in D makes it wrong.
-- by 会员 smartyfool (2009/12/17 14:18:44)