A-A+
It has been discovered that ______.A．H5N1 does
问题详情
It has been discovered that ______.
A．H5N1 does not transmit among human beings
B．bird flu spreads only among birds
C．H5N1 is a variant of flu virus
D．bird flu adapts easily to other species
参考答案
正确答案：C
解析：此题考查对有关H5N1细节的理解。根据第三和第四段得知C)是答案。特别注意A)，虽然最后一段提到no person-to-person transmissions have been reported，但由此不一定就能得出H5N1 does not transmit among human beings的结论。
