电熔熔接机操作前，应检查电源（），确认其符合焊机要求。
A、输入功率
B、输出功率
C、电流
D、电压
参考答案：D
Born and _____ near Edinburgh, Mollie has devoted her talents to writing for young people. [ ]
A. turned up
B. brought up
C. taken up
D. picked up
