如图,R1和R2都是10Ω,开关闭合后,电压表示数是4.5V,则电流表A1的示数为_____A,电流表A2的示数为_____A。
0.9,0.45
_______, I can see what you mean, even though I don’t share your opinion.
A.In a way
B.By the way
C.In the way
D.On the way
判断骨髓取材良好的指标是什么?