There are no black rats in Europe today because ______ took their places. [origi

游客2024-07-06  15

问题 There are no black rats in Europe today because ______ took their places.
Men are the cleverest and most dangerous animals on earth. Rats come second. Men kill their enemies. They have killed millions of men since ancient times-but rats have killed hundreds of millions of men. Rats carry diseases. Black rats carry a fatal di

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答案 brown rats

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