题目

湖南省长沙市一中2011届高三第五次月考   was to blame. A.The parents as well as their child  B.Not the parents but their child C.Neither the child nor his parents                D.Both the parents and their child 答案：B(1)已知x>0，试比较10x2－3x＋2与8x2－3x＋2的大小；(2)已知x>y，试比较(m－1)x与(m－1)y的大小．