题目

Williams was impressed __________ Benjamin and gave him two classic books on painting to take home. 答案：by/with（2012?渠县）①34与它的倒数的差去除512，商是多少？（列综合算式）②一个除法算式中，被除数、除数、商、余数的和是147．已知商为11，余数为2，求除数是多少？（用方程）