Q6: Sue’s monthly earnings consist of a monthly salary and a 4 percent commission on the portion of her monthly sales that is in excess of $2,000. If Sue’s monthly salary was the same in July as in August, how much greater were her sales in July than in August? (1) Sue’s monthly earnings were $3,620 in July and $3,580 in August. (2) Sue’s monthly salary was $3,500 in July and in August. answer:a 请大牛们看看~~~作者: xiongbaobao 时间: 2010-3-22 14:48
证实：是一道争议题，有难度
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