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Doctors should take special care when treating children because their breathing rate is different from _____ of adults.
A.thatB.thoseC.someD.one
A
考查代词。That指代可数名词单数,或者不可数名词,后面必须要有定语修饰。其复数修饰是those,指代可数名词复数,后面有定语修饰。One指代可数名词单数,表泛指。本题的that="the" breathing rate,后面有定语of adults修饰。句意:当治疗小孩的时候,医生应该特别当心,因为小孩的呼吸频率与大人的呼吸频率完全不一样。故A正确。
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