题目

如图，已知l1∥l2，∠2是∠1的2倍，则∠1等于（  ）． 答案：A解析:p;【解析】略 . I became more and more excited, trying to work out _______ Mom was taking us on holiday. A．where was it that B．it was where that C．where it was that D．was it where that