选择题:菊科植物的连萼瘦果由( )共同形成。A.上位子房与萼筒B.下位子房与萼筒C.半下位子房与萼筒D.半

题目内容:

菊科植物的连萼瘦果由( )共同形成。
A.上位子房与萼筒
B.下位子房与萼筒
C.半下位子房与萼筒
D.半上位子房与萼筒
参考答案:

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