单项选择题

A．By tracing them.
B．By using computer system.
C．By using computer technology.
D．By studying science papers.
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You are allowed 35 minutes to write a composition based on the outline below. The suggested title is: Pleasures of the Country. You should base your composition on the following outline: (1) In spring the grass, the flowers and the trees begin to look bright. (2) In summer the country is still mom attractive. (3) In autumn... (4) in winter... You should write 160—200 words on ANSWER SHEET 2.
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进步是有的——有两项伟大发明，即火药和航海指南针——但是，就其革命性意义而言，这两项发明都不能同语言、文字和农业相比。
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