According the passage, which of the following is true? A . People are now faced with the most terrible disease the world ever had. B . Bird flu cases have been found in pigs. C . Bird flu found in Vietnam and Korea is of the most dangerous kind. D . Bird flu cases in humans have been found in only two countries.

According the passage, which of the following is true?

A . People are now faced with the most terrible disease the world ever had.
B . Bird flu cases have been found in pigs.
C . Bird flu found in Vietnam and Korea is of the most dangerous kind.
D . Bird flu cases in humans have been found in only two countries.

出自：广西科技大学大学英语1

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