This experiment investigated the distribution of Ginkgo trees and the nesting rate of Pica pica in Peking University.

对北京大学校园内银杏树分布及喜鹊营巢情况进行了调查。

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This experiment investigated the distribution of Ginkgo trees and the nesting rate of Pica pica in Peking University.

对北京大学校园内银杏树分布及喜鹊营巢情况进行了调查。

youdao