_______.

【名词&注释】

两性花(hermaphrodite flower)、单性花(unisexual flower)、自花传粉(self pollination)、异花传粉(cross pollination)

[单选题]_______.

A. conclusion
B. description
C. evaluation
D. introduction

查看答案&解析查看所有试题

学习资料：

[单选题]It was from only a few supplies that she had bought in the village the hostess cooked such a nice dinner.

A. where
B. that
C. when
D. which

[单选题]进行自花传粉的花一般都是两性花，而进行异花传粉^{(cross pollination)}的花一定是单性花。( )

A. 正确
B. 错误

[单选题]紫萁(Osmunda japonica)的叶为同型叶。( )

A. 正确
B. 错误

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