题目内容

____ In ancient Rome, white was the most popular wedding color.

A. 对
B. 错

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____ Both of the yellow and orange get noticed and can be used for safety.

A. 对
B. 错

___ Purple has always been considered the color of royalty because it cost too much.

A. 对
B. 错

___ White is the color of mourning, so it can be used for funeral dress both in China and in the west.

A. 对
B. 错

作物在哪个时段进行主动吸水?

A. 晚上
B. 白天

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