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          考研专业课

          据英国《太阳报》,12岁的英国狗狗黛西能在几秒之内嗅出癌症的“味道”,它迄今已经在临床中靠嗅觉检查出550例癌症病例,甚至还挽救了自己主人的生命。黛西的嗅觉灵敏到可以嗅出两个游泳池大小水域中的一滴血。在未来,像黛西一样的狗狗能够成为人类对抗癌症最有力的武。

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