单词：expense of reproduction
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This is scientific American's science 60 second science, I am steve mosbyA lot of people have had compacted third molars. Third molars produce chronic pain. Allen man, a Princeton University Physical anthopolegist, the annual meeting of the immagrate
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Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells
与美国小学生一起学英文第10册
VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. On our program this week, we will tell about an animal that can reproduce without mating. We also will tell about a Swedish man who d
VOA慢速英语2007年（六）月
ISPs 网络服务提供者 CTR click through rate 点击率 hack tools/ cheating program 私服，外挂 SAM 软件资产管理 OD plants 光盘生产厂 OD exemplars 光盘模板 OD testing 光盘鉴定 collective management 集体管理 performing
英文语法词汇
本期真题 1. Nancy is only a sort of ______ of her husband's opinion and has no ideas of her own. A) sample B) reproduction C) shadow D) echo 2. Now that spring is here, you can ______ these fur co
英文语法词汇
今天我们要学的词是at the expense of。At the expense of, 意思是以某件事或者某个人为代价。沸沸扬扬的占领华尔街运动继续在美国各大城市上演。 Protesters accused the richest 1 % of accumulating their wealth
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