题目

If it is fine tomorrow, we will go for a walk., we will go for a walk. 答案：【1】Weather permitting（2015秋•重庆校级期中）如图，已知平行四边形ABCD中，AC，BD相交于点O，AD=BD=8，AC=12，则△ADO的周长是（ ）A．20 B．8 C．16 D．12