[ti:UNIT 2 DNA Lesson 10 What Is DNA?] [0:02.300]UNIT 2 第二单元 [0:03.936]DNA [0:06.098]Lesson 10: 第10课: [0:07.918]What Is DNA? 什么是DNA? [0:10.668]THINK ABOUT IT! 想一想! [0:12.400] Do you and the students near you look the sam

发表于:2018-12-10 / 阅读(110) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

[ti:UNIT 2 DNA Lesson 15 Cloning Questions] [0:01.154]UNIT 2 第二单元 [0:02.876]DNA [0:05.935]Lesson 15: 第15课: [0:07.825]Cloning Questions 克隆问题 [0:11.631]To: 至: [0:12.419]jenny@compmail.ca [0:15.357]From: 来自: [0:16.233]Li-

发表于:2018-12-10 / 阅读(169) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

[ti:UNIT 2 DNA Lesson 13 Clones Are the Same] [0:00.788]UNIT 2 第二单元 [0:02.442]DNA [0:05.530]Lesson 13: 第13课: [0:07.106]Clones Are the Same 克隆人是一样的 [0:09.703]THINK ABOUT IT! 想一想! [0:11.155] You have a pet that you l

发表于:2018-12-10 / 阅读(149) / 评论(0) 分类 河北教育初中英语(初中起点)九年级下

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(66) / 评论(0) 分类 科技之光

LONDON Whats being billed as the future of skin care starts suspiciously like a visit to the dentist: with a mouthwash gargle. Thats to eliminate debris that may interfere with a good saliva sample, from which DNA will be extracted and serums tailore

发表于:2019-02-06 / 阅读(58) / 评论(0) 分类 阅读空间

Who do you think your pet is? Learning from Your Dog's DNA 你认为你的宠物是谁?狗狗DNA中的发现 A simple cheek swab can reveal your dog's ancestry, provide insight into its health and even help explain its behavior 擦一下狗的脸就可

发表于:2019-02-21 / 阅读(103) / 评论(0) 分类 人物杂志