补全对话。
Anna: ____.
John: ____. Can I have a look?
Anna: ____. Here you are.
John: ____.
John: You are welcome.
A. Sure!
B. I have a nice cat.
C. Oh, really?
D. Thank you.
E. Oh! It's nice. I like it.
如图所示的电路,电源电压恒定,已知R0=40Ω、R=5Ω,S1、S2都闭合时,电压表示数为9V;若只闭合S1时,电压表示数为 ____V,通过R的电流是 ____A.
已知⊙P在直角坐标平面内,它的半径是5,圆心P(﹣3,4),则坐标原点O与⊙P的位置关系是____
— Where's Jiangyan? Is it far away from Xuzhou?
— It's ______the south of Xuzhou and ______ the east of Taizhou.
属于磁的应用的有( )
Please look _______ the pictures on the wall.