题目

下列变化中，属于化学变化的是                    A．铁钉生锈B．雪融为水C．折叠纸人D．菠萝榨汁 答案：A解析:略Miss Han, _________ her two sons, speaks good Chinese. They often talk in Chinese. A．as good as B．as well as C．and D．so well as