【名词&注释】
蕨类植物(pteridophyte)、十字花科(cruciferae)、最高级(supreme grade)、孢子植物(spore plant)
[单选题]蕨类植物既是最高级的孢子植物(spore plant)又是最原始的维管植物。( )
A. 正确
B. 错误
查看答案&解析
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举一反三：
[单选题]A small plane crashed into a hillside five miles east of the city, _____ all four people on board.
A. killed
B. killing
C. kills
D. to kill
[单选题]What does the man mean?
A. He got there in only five minutes.
B. He has a good reason for being late.
C. He is used to waiting for the woman.
[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( )。
A. 中轴胎座
B. 侧膜胎座
C. 边缘胎座
D. 特立中央胎座
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