单选题：Since ancient times people have found variousways to preserv

题目内容：

Since ancient times people have found variousways to preserve meat. A．eat
B．cook
C．freeze
D．keep

参考答案：

答案解析：

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以资本形态划分，资本主义国家对外输出资本的形式包括（　　）A．借贷资本输出 B．生产资本输出 C．私人资本输出 D．国家资本输出

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