What is the purpose of the author in writing the passage?

What is the purpose of the author in writing the passage?

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2007年,我国教育经费的支出占国家财政支出的比例约为(  )。

2007年,我国教育经费的支出占国家财政支出的比例约为(  )。

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The early railroads were connected short lines in the existi

The early railroads were connected short lines in the existing arteries of trans

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The gibbon ranges over an area wider than do the other apes.

The gibbon ranges over an area wider than do the other apes.

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在接受治疗的腰肌劳损患者中,有人只接受理疗,也有人接受理疗与药物双重治疗。前者都可以得到与后者相同的预期治疗效果。对于上

在接受治疗的腰肌劳损患者中,有人只接受理疗,也有人接受理疗与药物双重治疗。前者都可以得到与后者相同的预期治疗效果。对于上述接受药物治疗的腰肌劳损患者来说,此种药

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