题目

计算：  答案：解：原式=                         …………………4′=2+1-1+                                    …………………6′=2+                                        …………………8′解析:略 Andersen, the writer of “the little match girl”(《卖火柴的小女孩》)_______ single all his life.A.remindedB.recommendedC.remainedD.remembered