题目

化简（2a﹣3b）﹣3（4a﹣2b）结果为（ ） A．﹣10a﹣3b       B．﹣10a+3b  C．10a﹣9b   D．10a+9b 答案：B【考点】整式的加减． 【分析】利用去括号法则即可求出答案． 【解答】解：原式=2a﹣3b﹣12a+6b=﹣10a+3b， 故选（B） 【点评】本题考查整式加减，涉及去括号法则，属于基础题型．17、—It shouldn’t take long to clear up after the party if we all volunteer to help. —That’s right.           . A. any hands make light work                     B. Something is better than nothing C. The more the merrier                             D. The sooner begun, the sooner done