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依据_______ 、_________ 、________ 、_______ 等特征来区分松科、杉科、和柏科,这三科的演化规律是 _________。
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依据_______ 、_________ 、________ 、_______ 等特征来区分松科、杉科、和柏科,这三科的演化规律是 _________。
时间:2021-09-08 15:37
关键词:
青书学堂
东北林业大学
树木学
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标准答案:@#@叶形@#@叶和种鳞的着生方式@#@种鳞和苞鳞的结合程度@#@种鳞内的种子数@#@松科向柏科,
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