细菌培养时龄

VOA慢速英语2009-Agriculture Report - Working Magic in the Garden

This is the VOA Special English Agriculture Report. Beans are a popular choice for home gardens. Specialists at the University of Illinois Extension say bush beans need the least work. The plants do not need supports to stand. Green bush beans used

发表于:2018-12-15 / 阅读(33) / 评论(0)

VOA慢速英语2009年（三）月

SSS 2009-05-20

This is Scientific Americans 60-second Science. I'm Adam Hinterthuer. Got a minute? The Komodo dragon is the largest living lizard and a fearsome predator. It has long been thought that some of its hunting prowess was due to a mouth teeming with bact

发表于:2018-12-24 / 阅读(42) / 评论(0)

Scientific American(五)月

SSS 2009-01-16

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar

发表于:2019-01-08 / 阅读(53) / 评论(0)

Scientific American(一)月

SSS 2009-01-02

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an

发表于:2019-01-08 / 阅读(81) / 评论(0)

Scientific American(一)月

英语游戏:Age of Japan 2

[全屏观看] 点击右键- 另存为可保存这个Flash影片 Description: Age of Japan is an incredible puzzle entertainment, which shines with unique graphics. All 40 game levels are rendered with Japane...

发表于:2019-01-08 / 阅读(141) / 评论(0)

Daily Free Games

英语游戏:Age of Japan

发表于:2019-01-08 / 阅读(167) / 评论(0)

Daily Free Games

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