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    population:对此进行提问时.要使用what.人口的“多.少 使用large, small,表示“有多少人 时用“has a population of- . population:用作主语时.谓语动词的单复数由其后面的表语来决定. ----What’s the population of China? ----China has a population of 1.3 billion. The population of New Zealand is small. The population of developing countries are mostly peasants. 【查看更多】

     

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    It is the prevention of disease ________ its successful treatments that has led to the rapid increase of the world's population.

    [　　]

    A．rather than
    B．not only
    C．but also
    D．less than

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