单选题
According to the author, the importance of greenspaces in the urban environment ______.
A、
is still unknown
B、
is being closely studied
C、
is usually neglected
D、
has been fully recognized
【正确答案】
D
【答案解析】
文章第一段第二句说,幸运的是,有关这一话题的每个讲座或每本书都再也不必先证明公有绿地对城市环境的重要性。由此可推断出D为正确答案。
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