—It's cloudy.
A:What's the weather
B:what was the weather like
C:How's the weather like
D:How is the weather
如下图所示电路,电源电压为3V且保持不变,R1的阻值为10Ω,R2的阻值为20Ω,下列选项正确的是( )
直接写出得数.
14 + 34 =____
3.9× 113 =____
9÷ 23 =____
6﹣ 16 =____
512 × 910 =____
2+ 38 =____
45 ﹣ 12 =____
3÷1%=____