The animal source which provides the most protein for human being is ______. The balance between jobs and the environment can b

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问题 The animal source which provides the most protein for human being is ______.
The balance between jobs and the environment can be kept if ______.

选项 A、fishing capacity is further increased
B、fishing jobs axe further increased
C、fewer well-equipped fishing ships axe used
D、fewer species are allowed to rebuild

答案C

解析 末段点明了keep the balance between jobs and the environment的方法。因为机械化捕鱼需要的人少,而小规模的捕鱼则需要大量渔民,这样可以保证渔民就业,又可以减缓鱼类灭绝,增加国民收入。
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