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问题 填空题

常见的计算机系统结构分类法有3种（）。

答案

参考答案：Flynn分类法、冯氏分类法、Handler分类法

选择题

关于北方地区的气候，叙述正确的是(    )

A．四季如春

B．全年高温多雨

C．冬冷干燥，夏热多雨

D．全年干燥少雨
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问答题

Suppose you were taken good care of by Mr.Smith when you visited Beijing where he lived. Write a letter in about 100 words to extend your appreciation. Do not sign your own name, using "Li Ming" instead. Do not write the address.
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