Generally,the thicker a mammal's skin is,the less hair____
Generally,the thicker a mammal's skin is,the less hair____
A.that has it B.that it has C.has it D.it has
考察的是那部分知识啊?
A.that has it B.that it has C.has it D.it has
考察的是那部分知识啊?
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