A. I often paint pictures. B. I like winter best.
C. We go to the park at 7:00 a. m. D. Because there are beautiful flowers.
What is the ____(连接,关系)between the two ideas?
读“非洲气候类型图”,下列说法正确的是( )
对下面这幅书法作品解说不正确的一项是( )
如图7-3-7所示电路,闭合开关后,将滑动变阻器滑片P由a端向b端滑的过程中,图中电压表和电流表的示数变化正确的是( )图7-3-7