题目

如图所示，两个同心圆的半径分别为3cm和5cm，弦AB与小圆相切于点C，则AB的长为A．8cm了    B．6cm     C．5cm     D．4cm 答案：A解析:略 The European Union has been hit by the debt crisis one time after another, __________ in great panic. A. neither resulting        B. either results      C. none resulted         D. each resulting