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课程与PC端同步更新，充分利用零碎时间。做题
海量精选试题，想练就练，瞬间提分。答疑
海量精选试题，想练就练，瞬间提分。直播
名师大咖面对面，有问有大收获多。"Good," the manager said, and he took a box of sweets out of his desk. "Last week I bought a thousand boxes of this sweets. If you can sell them all before the end of the week, you can have the job."
"That's easy," Harry said.
He took the boxes of sweets and left the office.
Every day and all day he went from shop to shop, trying to sell boxes of the sweets. But he couldn't sell one. The sweets were so bad that he couldn't even give them away.
At the end of the week he went back to the manager. "I'm sorry, sir," he said. "I was wrong about myself. I'm not the best salesman in the world, but I know who is."
"Oh," said the manager. "Who do you think is the best?"
"The person who sold you a thousand boxes of the sweets."
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