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题库 / Prep2007E2-SC-20
The human nervous system and a telephone system superficially resemble each other, not only because the former carries information in the form of electrical impulses and because all of its neural pathways converge in the brain and spinal cord, which together form a kind of central exchange.
The human nervous system and a telephone system superficially resemble each other, not only because the former carries
The human nervous system and a telephone system bear a superficial resemblance because they both carry
The human nervous system bears a superficial resemblance to a telephone system both because the former carries
Superficially, a telephone system resembles the human nervous system both because they carry
There is a superficial resemblance between a telephone system and the human nervous system, not only because they both carry
if a sentence contains a COMPOUND NOUN (X and Y), you CANNOT use a pronoun to refer to just X or just Y, unless you use "the former" or "the latter" to make the distinction explicit.
in (d), it's technically incorrect to use "they" because there is no place in which both systems are mentioned at once (e.g., with "and").
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