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

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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