回答题According to Hahn, the HIV epidemic originated in[A] Cameroon.[B] K-考呗网题库移动版

单选题回答题

According to Hahn, the HIV epidemic originated in
[A] Cameroon.
[B] Kinshasa and Brazzaville.
[C] Congo River. 　　
[D] Nile River.

参考答案B

解析:

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单选题From the description in the passage, we learn that

A． monkeys are also susceptible to HI
B． AIDS has killed 25 million people in the last 25 year
C． vaccine has been developed to prevent AID
D． AIDS can be cured by drug cocktail

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单选题According to the passage, HIV is spread through all the following EXCEPT

A． bloo
B． sexual contac
C． breastfeedin
D． a toilet sea

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单选题It can be inferred from the passage that the virus is transmitted from chimps in Cameroon to humans most probably through

A． some clades of the virus related to the human viru
B． aborigines residing in the virgin forest of Cameroo
C． Ivory and hardwood traders who were bitten by the chimp
D． chimp droppings floating in a river from Southern Cameroon to Cong

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