试题详情单项选择题When replacing a power supply， what MUST the technician observe？（）A、voltageB、currentC、wattageD、resistance正确答案：关注下方微信公众号，在线模考后查看热门试题A customerQWhat is A user rA computerQA Laser Which IP Which cleaningWhich of A user cWhich testQWhat is An A+ CeWhich processoWhat is Where are̳A client When replacingWhich componenA defectiveWhat is
