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问题 填空题

用（）裁剪机裁剪，除要遵循进刀法则，还要做到先裁小片，后裁大片。

答案

参考答案：直刀

单项选择题

在数据库管理系统的层次结构中，由低级到高级的层次排列顺序为

A．应用层，数据存取层，数据存储层，语言翻译处理层

B．应用层，数据存储层，数据存取层，语言翻译处理层

C．数据存储层，语言翻译处理层，数据存取层，应用层

D．数据存储层，数据存取层，语言翻译处理层，应用层
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单项选择题

The sufferings of wind power industry in the mid-1980s in the United States could be attributed to the following EXCEPT ______.

A. oil crises of the 1970s
B. the drop of oil prices
C. lack of funding for research into renewable energy
D. loss of interest in wind energy as a widely-used source of energy
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