题目内容

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

A. 对
B. 错

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

A. 对
B. 错

Customers had to pack the goods into small packets.

A. 对
B. 错

Cullen opened the world's first real supermarket in 1930.

A. 对
B. 错

科研成果的表述形式可以是科学技术报告、、专著、译著、工具书，也可以是、应用软件等。