— Whose notebook is this? — It could be_爱下问搜题

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问题选择题

— Whose notebook is this?

— It could be ______．She studies French.

A．Tom

B．Mary

C．Tom’s

D．Mary’s

答案

答案：D

选择题

We have ______ rain this spring. The flowers don't grow well.[ ]

A. little

B. a little

C. a few

D. few

问答题简答题

何谓静息电位？简述其产生机制。