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[VOA慢速] VOA慢速精精听2019-02-05

提高英语听力能力 找对方法很重要!
Challenge is most people present when it is very late stage, and it is about to manager symptoms as oppose to curing them.
so the key thing you can do it is detected the disease early, and that is what we think the breathalyzer technology XXXXX early stage when it is treatable.
The testing of the owlstone breathalyzer is currently limited to patients with suspected of XXX and stomach cancer.
The XXX cancer is the leading cause of cancer death around the world, most cases are reported in developing countries. XXX cancer in early stages, usually have no sign. However, the chemical markers of the disease are present even in the earliest stage. Over the two-year trial, researcher will extend testing of breathalyzer to include patient with other cancers.
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