A:y=2x﹣1
B:y=﹣x+3
C:y= 12 x+2
D:y=2x
如图可以说明巨磁电阻的特性.闭合开关S1、S2并使滑片P向左移动,观察到指示灯变亮,那么( )
I've met her on several o____ recently.
In our class, there's a ________ that when it is somebody' s birthday, they bring in a cake for us all to share.