题目

 What impressed me most about the movie were the ________ filmed in New York. A. scenery    B. scenes C. sights    D. views 答案：B 已知直线ax＋by＋1＝0与圆x2＋y2＝50有公共点，且横坐标、纵坐标均为整数，则这样的直线共有________．