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面向对象的程序=对象+（）+继承+消息通信

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Unit 2Text A:（15*5 ）75pointsTo find out how “Junk” DNA makes us who we are, two teams have carried out relevant researches. Please fill in the blanks to finish the structure of the text.

unit 2 Text B (5*5)25pointsAnalyzing detailsFocus on the different statistical weight on DNA evidence in Smith case and complete the chart.

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