高等继续教育 / 专科英语I
正确率：100%
网络远程教育期末考试【专科英语I】模拟试题
American scientists say they believe trees can warn each other to danger by releasing chemicals into the air.
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正确
错误
American scientists say they believe trees can warn each other to danger by releasing chemicals into the air.
考题选项：
正确
错误
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