硬支气管检查的适应证包括()
A.主动脉动脉瘤
B.严重心脏病和高血压
C.喉结核
D.急性喉阻塞
E.气管异物
参考答案：D, E
He looks __________. Give him something__________.
A．tired; to eat
B．angry; to drink
C．hungry; to eat
D．worried; to do
什么是矛盾？矛盾的基本属性是什么？
