Lacking
information about energy use, people tend to overestimate the amount of energy
used by equipment. such as lights, that are visible and must be turned on
and off and underestimate that used by unobtrusive equipment, such as water
heaters.
(A) equipment, such as
lights, that are visible and must be turned on and off and underestimate that
(B) equipment, such
as lights, that are visible and must be turned on and off and underestimate
it when
(C) equipment, such
as lights, that is visible and must be turned on and off and underestimate it
when
(D)
visible equipment, such as lights, that must be turned on and off
and underestimate that
visible equipment, such as lights, that must be turned on and off and underestimate it when
答案是D没有异议。只是对于插入语有些疑问。这种插入，是不是使原来的定语从句，变得有点想非限定性定语从句。如果有个答案把所有的that替换成which，是不是会更好呢？
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发表于 2005-4-4 22:58:00
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