
【名词&注释】
两性花(hermaphrodite flower)、韧皮部(phloem)、初生木质部(primary xylem)、筒状花(discoid flower)、舌状花(ligulate flower)
[单选题]茎初生木质部的发育方式为内始式,初生韧皮部的发育方式为外始式。( )
A. 正确
B. 错误
查看答案&解析
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举一反三:
[单选题]What does the author think of the parties in London?
A. A bit ummul
B. FUllof tricks.
C. Less cosdy.
D. Move interesging.
[多选题]菊科各类花中,( )为非两性花。
A. 筒状花
B. 舌状花(ligulate flower)
C. 假舌状花(ligulate flower)
D. 二唇花
E. 漏斗状花
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