Engines are to machines hearts are to animals． [ ] A． as B． that C． what D． whic
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Engines are to machines _______ hearts are to animals．
[]A．as
B．that
C．what
D．which
试题答案
答案：C
解析：what引导表语从句，在从句中作表语。to machines和to animals作状语，意为“对机器来说”“对动物来说”。as用于引导定语从句，意为“正如”。that引导表语从句只起连接作用，不作任何成分。which引导表语，在从句中作主语、宾语、表语或定语，意为“哪一个”。 |