第19题: [单项选择]Mr. White brought a countercharge against you because you had______ him for smuggling several pieces of antiques and cultural relics. A. charged B. indicted C. accused D. prosecuted 参考答案:B
第20题: [单项选择]下列化合物中,铁的氧化数是+3的是()。 A. Fe(NO3)2 B. FeC2O4 C. Fe(H2O)6Cl3 D. (NH4)2SO4·FeSO4·H2O E. FeSO4 参考答案:C