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1

These findings do not supportthe hypothesis that mosquitoes are involved in either biological or mechanical transmission of hepatitis B.

这些发现不支持蚊虫涉及乙肝传播的生物或机械途径。

2

The Masai Mara savanna in Kenya and the Serengeti in Tanzania supportthe largest migration of grazing animals in the world .

肯尼亚的马塞马拉稀树草原和坦桑尼亚的塞伦盖蒂维持着世界草食动物最大规模的迁移。

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