Although we produce carbon when we breathe, the carbon we produce is much less than _________ produced by a car.
A．it B．the one C．what D．that
Although we produce carbon when we breathe, the carbon we produce is much less than _________ produced by a car.
A．it B．the one C．what D．that
D
【解析】 考查代词辨析。句意：尽管我们呼吸时产生二氧化碳，但我们产生的二氧化碳比汽车产生的少得多。that指代此前面的不可数名词carbon。指代前面的不可数名词，要用that，而it是指同类同物，the one,其中的one指代可数名词的单数，what是“什么”，不能指代前面的不可数名词，因此选D项。