如图所示的电路中,电源电动势E=10V,内阻r=0.5Ω,电动机的电阻R0=1.0Ω,电阻R1=1.5Ω.电动机正常工作时,电压表的示数U1=3.0V,求:
A. I want to buy some toys.
B. Go straight down this street. Turn left at the traffic lights.
C. Sure.
D. He is flying a kite.
E. They played basketball.