What major did the man choose in the end?
A：English.
B：Biology.
C：History.
如图所示，电源电压不变，R1=8Ω、R2=12Ω．当S1闭合S2断开，①、②都是电流表时，两表示数之比是 ____，当S1、S2都闭合，①、②都是电压表时，则两表示数之比是 ____.
《题李凝幽居》的文学体裁是____，作者是____朝诗人____。
下列词语书写完全正确的一项是（ ）
--No, I can't. I don't have a(n) , so I'm not allowed to do it.
How old was Tony when he finished school?
