【单选题】多项选择题5:电源是提供电能或信号的装置,能将其他形式的能量转换为电能,是产生电流的源泉,本节课教学项目LED手电筒电路采用了几节5号电池串联成6V作为电源。
【单选题】将电能或电信号转换为其他形式能量或信号的器件是
【判断题】成本核算时,全陪的水费,礼品费用、房费、交通费用、餐费、门票费均需要平摊到每位游客身上。
【单选题】The manager proposed that Tom _________an opportunity to explain why he’d refused to go there.
【单选题】. If you _______wait a moment, I’ll go and find our manager.
【简答题】A good manager must let others trust him/her.
【简答题】Being a good manager must enjoy people.
【单选题】If you____wait a moment, I’ll go and find our manager.