单词：gel fraction
单词：gel fraction 相关文章
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This is the VOA Special English Health Report. Shy people often avoid situations that force close contact with other people. They worry that something they say or do will make others laugh at them. But some people worry much more than others about be
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I reflect on my reflection And i ask myself the question Whats the right direction to go I dont know Am i a man or am i a muppet If im a muppet then im a very manly muppet Am i a muppet or am i a man If im a man that makes me a muppet of a man Walter
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South African researchers have made a scientific breakthrough in the fight against AIDS with a vaginal gel that significantly reduces a woman's risk of being infected with HIV, the virus that causes AIDS. Experts say the gel could be a revolutionary
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