单选:下列关于云杉和冷杉的描述正确的是()。A.云杉有叶痕,冷杉具有叶枕B.云杉叶条形扁平,冷杉叶条形四棱C.云杉球果下垂,冷杉球果直立D.以上描

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  • 题目类型:单选
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题目内容:
下列关于云杉和冷杉的描述正确的是()。
A.云杉有叶痕,冷杉具有叶枕
B.云杉叶条形扁平,冷杉叶条形四棱
C.云杉球果下垂,冷杉球果直立
D.以上描述均不正确
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