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四、阅读理解（共15小题；每题2分，共30分。）阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项，并把它前面的大写字母填入左边的括弧里。AFirsttherewaslear
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Sumeria，ala
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umbersAbout500yearslater，theEgyptia
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Havi
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