题目

Where did your family eat dinner last night? In the car on the way to sport? At McDonald’s? Or at the dinner table? A survey taken a few years ago found that 28% families ate dinner together at home seven nights a week. Another quarter said they ate together three or fewer nights a week.Once upon a time the situation was different. 【1】 Plates, forks and spoons would be laid out. As dinner time approached, an increasing number of hungry mouths would begin to appear with the question, “What’s for dinner”?【2】 The data seems to point to two main issues: overworked parents and over-13．若抛物线y2=2px（p＞0）上一点P（2，y0）到其准线的距离为4，则抛物线的标准方程为（　　）A．y2=2xB．y2=4xC．y2=6xD．y2=8x