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脆甜可口的冬枣肉、香香的西瓜籽、营养丰富的玉米粒分别是由下列
脆甜可口的冬枣肉、香香的西瓜籽、营养丰富的玉米粒分别是由下列
脆甜可口的冬枣肉、香香的西瓜籽、营养丰富的玉米粒分别是由下列哪项发育而来的
( )
A
.子房、子房壁、胚珠
B
.子房、胚珠、子房壁
C
.子房壁、胚珠、子房
D
.胚珠、子房、子房壁
答案
C
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