本题目来源于试卷: HL Topic A2.3 Viruses，类别为 IB生物学
[问答题]
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
[img]data/attachment/exam/2501/24/2501241129276426.jpg[/img]
(d) The Ebola virus first appeared in humr7 p4u9 s;z,8udvhc fhans ino9az x;/q l.bb1cs p0o 1976. Suggest how the virus first xbzq/9p. o s;0ao bc1lappeared in the
human population.
参考答案: It transferred from (an original) animal host.
It is a zoonose.
本题详细解析:
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