A. We should take an active part in community service, which can enrich our life. B. At present, more than one million visito

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问题 A. We should take an active part in community service, which can enrich our life.
B. At present, more than one million visitors / tourists travel to Guangzhou every year.
C. Their relationship is based upon years of open communication with each other.
D. We must make good use of the resources we have now.
他们的友谊是建立在多年相互开放沟通的基础上的。

选项 A、
B、
C、
D、

答案C

解析根据their和open可得。

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本试题收录于：英语题库普高专升本分类