题目

一个灵敏电流计，内阻Rg=100Ω，满偏电流Ig=3mA，把它改装成量程为3V的电压表，需________联一个______Ω的电阻。学  答案：解析:略 Her parents died in a car accident when she was a baby and she was ________ by her aunt in Canada．A.turned upB.broken upC.cheered upD.brought up