______ label to each of the trees, with detailed introduction of their features,

题干

______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.

A．To attach

B．Attach

C．Attached

D．Having attached

上一题下一题 0.4难度单项选择更新时间:2011-11-28 10:55:17

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