题目

阅读下面材料,根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。A few years ago, the company I worked for sent my wife and me to live in New York for a year. I’ve always loved running, so I was really happy when I found out I lived next to Central Park. This meant that every morning I could go for a run before I went to work.Because a lot of people had told me to be careful of robbers in the park, so usually I didn’t take anything with me. How could they rob me if I didn’t have anything? But one morning, my wife gave me a $ 10 bill and asked m如果一个扇形面积是它所在圆的面积的，则此扇形的圆心角是 [　　] A．30°B．36° C．45°D．60°