题目内容

下列哪个图形与其他不同?

A
B
C
D

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We can conclude fromthis passage that ballet

A. is a dying art
B. will continue to change
C. is currently performed only in Russia
D. is often performed by dancers with little training

判断下列植物各属于哪个科?
小麦( ) 灰绿藜( ) 一串红( ) 草莓( )
板栗( ) 乌蔹莓( ) 蜀葵( ) 夏至草( )
郁金香( )芹菜( )

种皮上常有( )和( )构造,前者是种子成熟时从种柄脱落留下的痕迹,后者来自于胚珠上的珠孔。

列表比较双子叶植物与单子叶植物叶的异同点。

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