正确答案: A

正确

题目：蕨类植物既是最高级的孢子植物又是最原始的维管植物。( )

解析：A

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举一反三的答案和解析：

[单选题]A small plane crashed into a hillside five miles east of the city, _____ all four people on board.

killing

[单选题]What does the man mean?

He has a good reason for being late.

[单选题]十字花科雌蕊具2心皮，且因假隔膜的存在而为2室，所以其胎座为( )。

侧膜胎座