一个地区人口数量的变化与环境密切相关,两者互相影响、制约。结

一个地区人口数量的变化与环境密切相关,两者互相影响、制约。结合所学知识回答题。

下列影响人口死亡的疾病与自然环境关系直接相关的一项是(   

A.克山病、大脖子病              B.心脏病、霍乱病   

C.肺结核、肝炎                  D.伤寒、脑膜炎

答案

A

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