问题
填空题
生态系统中生物之间通过取食的关系而互相联系形成食物链，许多食物链互相交错形成____________。
答案
食物网
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生态系统中生物之间通过取食的关系而互相联系形成食物链，许多食物链互相交错形成____________。
食物网
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| Mr. Black works in a hospital. As a good __1__, the people in the town like him He's often __2__ to the patients and looks them over carefully. __3__ he's always busy and has little time to rest. One morning Mr. Black got to the hospital and saw there was a fat woman in the __4__. He called her in his office and asked, " __5__, madam?" "It was my birthday yesterday, sir," said the woman, "My husband gave me a __6__. But I couldn't push my way in (设法进入) it." "__7__, madam," said Mr. Black. "You have to lose some weight. You'll be able to __8__ your coat if you do all that I say. " "You're __9__, sir." said the fat woman "He bought me not a coat, but a dear __10__!" | ||||
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