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CO代表的是________VI 代表的是_______D代表的是 _______

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For now, the evidencealso suggests that ________(传播)is mostly via droplets.

There're three reasons why it didn't spread more. The first is that there was a lot of ______(英雄事迹) by the _______(医务工作者).

It(最初) occurred in a group of people with pneumonia who’d been __________with(有联系) a seafood and live animal market in the city of Wuhan.

Well, from what is known so far, there can be a number of symptoms ranging from______(轻微) to_______(严重).

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