bWe are the champions_____energy and water____the over populationA.of;because B of;because of C in;because D in;because of

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bWe are the champions_____energy and water____the over population
A.of;because B of;because of C in;because D in;because of

选择B
第二个空很好断定,因为because of 后面跟名词、代词或动名词,而because后面跟从句.
第一个空是因为前后为所属关系.

选D这个选项吧