【单选题】Cough is a normal physiologic reflex(生理反射) mediated by the 'cough center' of the brain. The function of this reflex is to clear airways of inhaled irritants, debris(碎屑), or secretions that have accumu...
【简答题】用适当的单词补全对话,使对话完整通顺。 (Doctor:D Patient: P) D: 1 the matter? P:I have a cold, cough! Cough!I have a terrible 2 ,ouch! Head aches, Oh,my god, help me! D: 3 it easy. Let me exam. Open your mouth, ok, g...