如图所示电路,电源电压一定。电阻R1的阻值为R2的2倍。当开关S1、S2都闭合时,电流表A1的示数为I1,电流表A2的示数为5I1。当开关S1、S2都断开时,电流表A1
图6
的示数为I1′。则I1′与I1之比为
﹣﹣﹣Could you tell me for the fruit?
﹣﹣﹣By paying over the Internet.( )
how much will I pay
how much I will pay
how will I pay
how I will pay
She was tired she continued her work.( )
so
until
but
that
If you want to join the Music Club. the form, please.( )
go out
fill out
get up
warm up
While the lights to red, a car suddenly appeared round the corner( )
change
have changed
were changing
will change
The government is setting up nature parks protect pandas.( )
to help
help
helped
helps