中度缺氧,缺氧症

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发表于:2018-12-30 / 阅读(60) / 评论(0) 分类 英文魔法师字源大挪移

Todd: What do you think about the zoo? Dianna: I like to go to the zoo. I like to give all the animals names, like Bert the Giraffe, but I wish the animals didn't have to be in the zoo, but I think it is good when zoos save animals, and help to make

发表于:2019-01-02 / 阅读(52) / 评论(0) 分类 英语访谈对话

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Hard-training athletes boost their performance with a variety of popular sports drinks. These drinks do work. But not in the way youd think. Thats acco

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 Scientific American(四)月

By Caroline Sawyer Nairobi 17 August 2007 A United Nations agency report says 600,000 people in southern Somalia, including people in and around the capital Mogadishu, are suffering from severe malnutrition and nearly 300,000 of those require immedia

发表于:2019-01-16 / 阅读(111) / 评论(0) 分类 2007年VOA标准英语(八月)

LULU GARCIA-NAVARRO, HOST: It's not every day that scientists announce a new season. But that's what ocean researchers just did on the west coast. They say waters off Oregon, Washington and California now have a whole season when the oxygen level on

发表于:2019-01-17 / 阅读(44) / 评论(0) 分类 2018年NPR美国国家公共电台10月

26 关于飞行缺氧的原因分析 DATE=3-22-01 TITLE=SCIENCE REPORT - Hypoxia While Flying BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(28) / 评论(0) 分类 科技之光