已知在某一阻抗上的电压相量为（10＋j15）V，电流相量为（12－j18）A，求该阻抗的大小。
参考答案：
该阻抗为－0.321＋j0.769Ω。
Anthropologist Barbara Myerhoff furthered her reputation as an authority on Native American culture with her study of the symbols, myths, and rituals of the Huichol people.
A．deserved
B．retained
C．renewed
D．advanced
施工机械台班的单价确定依据不包括( )。
A．折旧费
B．大修理费
C．经常修理费
D．施工机械迁移费
