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— is the Yangtze River?

— It’s 6397 kilometers.

A. How much B. How heavy C. How long D. How big

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Ann ______ the house when I called her last night.

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閱讀短文，根據短文內容回答問題。

We see them everywhere — on boxes of food, on packages and on CDs. They, of course, are bar codes. The invention of bar codes has changed the way we shop and how companies learn where their products are.

It was two university students from America, Bernard Silver and Norman Woodland, who first got theidea of bar codes. In 1948, they heard that the president of a food company was looking for a way to easily get information about what was being sold to customers. They tried to help by using a code system. They invented a large electronic reader to read the codes. However, computers couldn’t easily record the data that was read.

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1.What changed the way we shop?

2.Who first got the idea of bar codes?

3.Why did Collins start his own company?

4.What do hospitals use bar codes to do?

5.What is the passage mainly about?

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These nice photos in Science Museum last year.

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科目：初中英語 來源：Unit 5 Do you want to watch a game show-八年級英語上冊單元測試卷 題型：完型填空

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6.A. teach B. like C. mind

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8.A. a little B. little C. too much

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Department of Physical Education

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