题目

I hope I'll travel all over the world one_day.__ __ A．the next day  B．in the future  C．at that time  D．the whole day 答案：B（1）计算：27-（4-π）0-6cos30°+|-2|；（2）已知：如图，∠ABC=∠DCB，BD、CA分别是∠ABC、∠DCB的平分线．求证：AB=DC．