动物细胞与植物细胞的结构不同，导致了它们有丝分裂的不同，这是

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问题选择题

动物细胞与植物细胞的结构不同，导致了它们有丝分裂的不同，这是因为植物细胞[ ]

A．有叶绿体和细胞壁

B．有细胞壁和液泡

C．有细胞壁，无中心体

D．有叶绿体和液泡

答案

答案：C

选择题

Look! The girl ________in the classroom.

A．dances

B．dancing

C．is dancing

D．dance

选择题

As we have known from the map of the world, this is ______.

A．twice as large an island as that

B．twice as larger as that island

C．as twice as that one

D．twice as a large island as that