需急症手术的是（）
A．胆石症
B．胆道蛔虫
C．急性胆囊炎
D．急性梗阻性化脓性胆管炎
E．胆囊癌
参考答案：D
This is his only request that the room_______ after being used.
A．be cleaned
B．would be cleaned
C．is cleaned
D．will be cleaned
非处方药广告必须同时标明非处方药专用标识（OTC）。（）
