宇宙中充满了黑洞PDF电子书下载

．Friendship Proverbs and Quotes 友谊谚语和名言1 1

．Mend a Broken Friendship 修复破裂的友谊8 2

．Police Question Mom Accused of Beating Her Daughter 母亲打女儿，警察要过问16 3

．The New Millennium Thrill Ride 坐坐试试——新千年的刺激21 4

．People Who Become Words 源于人名的单词25 5

．Origin of Maverick “小牛”一词源于哪里？34 6

．Face to Face with Muhammad Ali 和拳王阿里面对面40 7

．Presidential Medal of Freedom 总统自由奖章50 8

．Web Ads,From Roach To Rich 互联网广告，从人人喊打到广受喜爱57 9

．Promote Stem Cell Research 推动干细胞的研究66 10

．Biotech Corn Rejected 转基因玉米遭拒绝73 11

．A Plan to Reform Education 教育改革计划82 12

．Hands off Our Schools 让我们自己管理学校92 13

．Our Insane Focus on Iraq 瞄准伊拉克的荒唐之举98 14

．One-Stop Shopping a Mixed Bag 一篮子购齐，喜忧参半105 15

．Can Embryos Be"Adopted"？ 胚胎也能收养？112 16

．Singapore:Searching for a New Groovy Image 新加坡：寻求新形象118 17

．Universe Awash in Black Holes 宇宙中充满了黑洞125 18

．West Nile Appears Able to Paralyze 使人瘫痪的西尼罗河病毒131 19

．Single-Sex Classrooms Gaining Favor 单一性别学校赢得青睐138 20

．Bush Isn't as Lonely as He Looks 布什并不寂寞难堪145 21

．Certain Species of Trees Contribute to Air Pollution 有的树木会导致空气污染152 22

．The Electrocution Photos 电椅死刑照片158 23

．The Pulitzer Prizes 普利策奖164 24

．Ten In-Demand Job Skills10 种急需的工作能力170 25

．The Essence of the Coast Guard:America's Maritime Guardians 美国海上警卫队176 26