一 .I'm free now.
A:That's right
B:You're kidding
C:No problem
D:It's up to you
如图所示,∠ABC,∠ACB的内角平分线交于点O,∠ABC的内角平分线与∠ACB的外角平分线交于点D,∠ABC与∠ACB的相邻外角平分线交于点E,且∠A=60°, 则∠BOC=____°,∠D=____°,∠E=____°.
- Look at the light. – It's ____(green/red). Let's ____(go/stop).
某同学有一个灯泡,将它与8Ω的电阻串联,当将它们接在24V的电源上时,灯泡恰好能正常发光,该同学测得通过电阻的电流为1.5A.下面的说法中正确的是( )