包子求助文献一篇# Biology - 生物学
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The hostess apologized to her unexpected guest for serving an apple-pie
without any cheese.
The little boy of the family left the room quietly for a moment and returned
with a piece of cheese which he laid on the guest's plate.
The visitor smiled, put the cheese into his mouth and then said: "You must
have better eyes than your mother, sonny. Where did you find the cheese?"
"In the rat-trap, sir," replied the boy.
without any cheese.
The little boy of the family left the room quietly for a moment and returned
with a piece of cheese which he laid on the guest's plate.
The visitor smiled, put the cheese into his mouth and then said: "You must
have better eyes than your mother, sonny. Where did you find the cheese?"
"In the rat-trap, sir," replied the boy.