单词：Steinkjer
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Scientists List Four Ways to Capture Carbon, Limit Rising Temperatures A new report suggests four simple ways to remove carbon dioxide from the atmosphere. Carbon dioxide is among the gases linked to the increase in the Earths temperature. The Nation
2018年VOA慢速英语(十一)月
你能帮我修一下电脑吗? Can you help me repair the computer? 已修了. It crashed. 我如何把文件打印出来? How do I print out a file? 我要上网 I want to log on the internet. 你能帮我下载一些音乐吗? Could you download s
英语口语900句
Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla
Scientific American(七)月
For the new iPad display is 2048 x 1536 pixels. Put it in another way. Many of you all have an HDTV at home. These televisions, 50 inches, 60 inches, have a resolution of 1920 x 1080. Here's an iPad, scaled properly next to it. It has more pixels. Le
英语万花筒
Mac computer 1.Mac computers cant get virusesMac 苹果电脑不会感染病毒 Yes, Apple computers are susceptible to malware, too. Apple used to brag its computers aren't as vulnerable as Windows PCs to viruses, but the company quickly changed its
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