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According to the passage, dogs and cats,A．as well as human beings can not see some colours
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Attila Andics found out that humans and dogs have similar______.A．nervous systemsB．social
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We notice this ____ true very often with dogs and cats.A: to beB: beC: beingD: to bein
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Nowadays, skilled workers such as carpenters, electricians and TV repairmen often have hig
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Ted: Im thinking of keeping a dog, and I wonder if you have any particular policy about an
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Birds have a sharp sense of sight and dogs have a
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Birds have a sharp sense of sight and dogs have a
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