单选题:下列关于被子植物果实发育的叙述,正确的是(  )。

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题目内容:

下列关于被子植物果实发育的叙述,正确的是(  )。 A.受精卵发育成胚乳
B.受精极核发育成胚
C.胚珠发育成种子
D.子房壁发育成种皮

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根据提供的信息和语言素材设计教学方案,用英文作答。 设计任务:请阅读下面学生信息和语言素材,设计一节英语读写课的教学方案。教案没有固定格式,但须包含下列要点:

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