Both dog’s diet and structure are______to those of the human being, and so it has been the subject of countless demonstrations a

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问题 Both dog’s diet and structure are______to those of the human being, and so it has been the subject of countless demonstrations and experiments.

选项 A、comparable
B、comparative
C、equal
D、contrary

答案A

解析 四个选项的意思分别是:comparable可比较的,比得上的;comparative比较的,相当的;equal相等的,均等的,胜任的;contrary相反的,逆的。句意是,狗的膳食和结构与人类相似,所以人们用狗进行了无数次的示范和实验。
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