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什么是人禽流感？什么是高致病性禽流感？

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关于历史人物秦桧的歇后语秦桧的妻子歇后语及典故

For this part, you are allowed 30 minutes to write an essay commenting on the saying "Never go out there to see what happens, go out there to makes something happen" You can cite examples to illustrate the importance of being creative rather than mere onlookers in life. You should write at least 120 words, no more than 180 words.
求范文，谢谢！

关于历史故事的歇后语慈禧太后听政歇后语及历史故事