教科版（2017秋） 四年级下册1.5《凤仙花开花了》练习题【无答案】
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| 名称 | 教科版（2017秋） 四年级下册1.5《凤仙花开花了》练习题【无答案】 |  | |
| 格式 | doc | ||
| 文件大小 | 146.5KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 教科版（2017秋） | ||
| 科目 | 科学 | ||
| 更新时间 | 2021-03-14 14:26:22 | ||
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1.5《凤仙花开花了》
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A.油菜花 B.桃花 C.水稻的花
3、萼片的作用是( )）
A.保护未开的花 B.保护果实和种子 C.保护雌蕊的柱头不受虫害
4、花的( )与果实和种子的形成有直接的关系
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_1???(___)??????é?????è????????è?±??????_
_A.????±?___B.è?????è?±___C???è?±_A.玉米 B.蒲公英 C桃花
_2???(___)???é?????è?±_
A.油菜花 B.桃花 C.水稻的花
3、萼片的作用是( )）
A.保护未开的花 B.保护果实和种子 C.保护雌蕊的柱头不受虫害
4、花的( )与果实和种子的形成有直接的关系
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