已知电路中的电流I＝2安，电阻R＝8欧姆，求电阻两端的电压是多少伏特？
参考答案：
U=I×R=2×8＝16V
电压是16伏。
．We are taught that a business letter should be written in a formal style ____ in a personal one．
A．less than
B．other than
C．better than
D．rather than
期货公司任用董事、监事和高级管理人员，应当自作出决定之日起5个工作日内，向中国证监会相关派出机构报告。( )
