判断正误。
I like Chinese music. I don't like pop music. Because I think pop music is not quiet. I can play the zither. My sister can play the zither, too . But she's better than me. We can play the erhu. I am better than my sister.
下列词语中加线字的注音,全都正确的一组是( )
如图,一架云梯25米,斜靠在一面墙上,梯子底端离墙7米,如果梯子的顶端下滑4米,那么梯子的底部在水平方向上滑动了( )
小明想探究不同物体的吸热能力,于是他设计如图所示的实验装置: