题目

 在△ABC中，∠B=30°，∠C=70°，若按右图的方式截取∠B、∠C，则∠1+∠2+∠3的度数是         答案： 280 °     —How was your trip?—Fine but ______．Milan was interesting．It’ s bigger than I expected, however a little ______ and dirtier．A．disturbing; clumsier B．tiring; noisier C．boring; dullerD．freezing; brighter