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Passage Two
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A. They have the same kind of culture.
B. They are wild in different ways.
C. They have most traveled areas.
D. They have cutting edge technology.

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A. The color of the outfit is perfect.
B. The trousers look wonderful.
C. The outfit goes well with the trousers.
D. The outfit is better than the trousers.

The minimum wage helped deal with insufficient low-end wages and inequalitythrough the late 1970s.
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A. Children stay there for one day and one night.
B. The time period ranges from 1 week to 8 weeks.
C. The cost is up to 700 dollars totally.
D. 4-year-olds are able to attend it.

在蛋白质分子中氨基酸之间的主键是()。

A. 肽键
B. 氢键
C. 糖苷键
D. 磷酸酯键
E. 3’.5’一磷酸二酯键

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