下列说法正确的是( ) A.静电感应不是创造了电荷,而是电子从一个物体转移到另

题型:选择题

问题:

下列说法正确的是(   )

A.静电感应不是创造了电荷,而是电子从一个物体转移到另一个物体或从物体的一部份转移到另一部分引起的

B.一个带电物体接触另一个不带电物体,两个物体有可能带上异种电荷

C.摩擦起电,是因为摩擦而使物体产生了电荷

D.以上说法都不对

考点:静电平衡状态、等势体
题型:选择题

小题1:

The woman doctor d__________________ all her life to medical work for Chinese women and children in those years

小题2:

It is w__________________ to spend the whole day in the forest,because you can know more about the animals’ world. 

小题3:

It is quite c_________________ that he will be successful in the final match.

小题4:

In no time,the exciting news spread t____________________ the whole country.

小题5:

He was determined to o___________________ the difficulties he met in his study.

小题6:

After class the students can take part in v________________ activities ,such as playing basketball, surfing the Internet and so on.

小题7:

The farmers in this area had a good harvest last year thanks to the s_______________farming.

小题8:

I’m totally c__________________. Could you explain that again?

题型:选择题

Access提供的( )能够很容易地实现一组记录的添加。

A.添加记录

B.添加查询

C.追加记录

D.追加查询

题型:选择题

城市化最主要的标志是

A.城市人口增加

B.城市用地规模扩大

C.城市人口在总人口中的比重上升

D.城市数量增加

题型:选择题

()是指商品集中,出货,保管,加工,分类,配货,信息的场所或经营主主体.

A.运转型物流节点

B.配送中心

C.物流中心

D.物流园区

题型:选择题

下面不属于传统动画片制作步骤的是()。

A.脚本和动画设计

B.关键帧设计

C.检查拍摄

D.渲染合成

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