题目

The summer holiday is coming. We’re going to have _______ holiday.              A. a two-month  B. a two-months    C. two months    D. two-months 答案：A       根据“数词一名词单数”做定语是固定结构，故选A。将抛物线y=2x2先沿x轴方向向左平移2个单位，再沿y轴方向向下平移3个单位，所得抛物线的解析式是    ．