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简述商品条码的应用。

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You will graduate from university and intend to continue your further study overseas. Write a letter to a graduate school to 1) make a self-introduction, 2) express your wish to get a place in the graduate school, and 3) ask for relevant documents. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address. (10 points)

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According to the passage, which of the following can hardly be a source of fresh food？

A. Wal-Mart.
B. Farmers market.
Convenience store.
D. Roadside stand.

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The spaceman found______to look at the earth falling rapidly away from him.

A. a most exciting experience
B. that a most exciting experience
C. the experience most exciting
D. it a most exciting experience

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The purpose of the economists research at the University of Iowa is to

A. predict the outcome of American presidential election.
B. predict the sales result of best-sellers.
C. predict future events.
D. predict diseases like influenza.

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