Health officials estimate that 35 million Africans are in danger of contracting trypanosomiasis, or "African sleeping sickness," a parasitic disease spread by the bites of tsetse flies.
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Aare in danger of contracting
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Bare in danger to contract
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Chave a danger of contracting
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Dare endangered by contraction
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Ehave a danger that they will contract
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正确答案: A