学科分类
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1 个结果
  • 简介:Likethefingerprintsthatcameintousebydetectivesandpolicelabsduringthe1930s,eachpersonhasauniqueDNAfingerprint.Unlikeaconventionalfingerprintthatoccursonlyonthefingertipsandcanbealteredbysurgery,aDNAfingerprintisthesameforeverycell,tissue,andorganofaperson.

  • 标签: 大学英语 注释 科技文 阅读练习