第10题: [单项选择]All the credit card organizations charge interest on a monthly basis which may______as 25 per cent a year, yet judicious purchasing using a card can mean that you obtain up to seven weeks interest-free credit. A. come up B. account for C. add up D. work out 参考答案:D 答案解析:work out“解决；算出；制定出”；come up“被提出”；account for“说明(原因)”；add up“合计”。题句意为：“所有发行信用卡的机构将按月收取利息，年利率可达25%；然而只
