题目

设直线nx＋(n＋1)y＝(n∈N*)与两坐标轴围成的三角形的面积为Sn，则S1＋S2＋…＋S2014＝________． 答案：（题文）（2016 • 湖北黄石）The twins look exactly the same. ____________ of them are in my class.A. Each B. Both C. Either D. None