题目

She has become a lawyer ,____she hoped to be． A．what          B．which          C．who             D．why 答案：B16．用电器通电时都会发热，下列哪种用电器可以认为是将电能全部转化成了内能（　　）A．电吹风B．电熨斗C．电风扇D．电视机