题目内容

总体国家安全观的内涵。

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Michael J. Culen had an ordinary grocery store.

A. 对
B. 错

Michael's idea was to tell customers to take goods from the shelves themselves.

A. 对
B. 错

Michael had to do three things to make his idea work.

A. 对
B. 错

Michael sorted goods into groups like"fruit and vegetables," for example.

A. 对
B. 错