题目

--Which of these two sweaters will you take? --I’ll take           .They look nearly the same,and I just need one. A. both                B.neither              C. all              D. either 答案：D两圆的半径分别为2和5，圆心距为7，则这两圆的位置关系为（ ）A．外离B．外切C．相交D．内切