【名词&注释】
十字花科(cruciferae)
[单选题]十字花科子房常有次生假隔膜，故形成中轴胎座。( )
A. 正确
B. 错误
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举一反三：
[单选题]
A. thus
B. even
C. still
D. again
[单选题]Who probably wrote the letter?
A. An editor.
B. An artist.
C. A reporter.
D. A reader.
[单选题]二体雄蕊就是一朵花中只有两个离生的雄蕊。( )
A. 正确
B. 错误
[单选题]46 A so far B neither C no longer D already
A. no longer
B. already
[单选题]Mother wanted to be a good provider, a role she _____ since her marriage to Father.
A. shoulders
B. shouldered
C. is shouldering
D. has been shouldering
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