With a standard bulb, only 5% of the electricity is ____( )to light, the rest is wasted away as heat. ( )
A.compressed B.conformed C.converted D.confined正确答案C
With a standard bulb, only 5% of the electricity is ____( )to light, the rest is wasted away as heat. ( )
A.compressed B.conformed C.converted D.confined正确答案C
