One report concludes that many schools do not have, or likely to have, enough computers to use them effectively.
or
nor
or are
nor are they
nor are not
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A B 因为不平行 out
E 因为双重否定 out
C 用了or out
B 在这里形式上平行 句意上完美
many schools do not have nor are they likely to have √
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