阅读理解，阅读下列内容，根据短文内容选择最佳答案。

　　One day an old man is selling(卖)a big elephant, a young man comes to the elephant and begins to look at it slowly．The old man goes to him and says in his ear, “Don't say anything about the elephant before I sell it, then I will give you twenty dollars．”“All right, ”says the young man．After the old man sells the elephant, he gives the young man twenty dollars and says, “Now, can you tell me how you found the elephant's bad ears? ”

　　“I didn't find the bad ears, ” says the young man．“Then why are you looking at the elephant slowly? ” asks the old man．The young man answers, “Because I have never seen an elephant before, and I want to know what it looks like．”

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阅读理解

A young man works hard at his lessons．He in very busy studying．He doesn't have time to rest．After some time, he falls ill．Every night, when he goes to bed, he closes his eyes and tries to sleep．But he can't．He thinks,“I must go to see the doctor．”He tells the doctor,“I can't go to sleep at night．”“Try counting(数)numbers．When you reach 1,000, you'll be asleep,”says the doctor．The next day the man goes back to the doctor's office．“Well,”says the doctor“How are you today?”“Well,”he said,“I tried counting one, two, three…up to 1,000．But when I reached 569, I began to feel sleepy(犯困的)．I had to get up and drink some tea．Then I went on counting up to 1,000 again．But I still couldn't fall asleep．”

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