人的差错（失误）分类：（）。
A.未正确提供、传递信息
B.识别、确认错误
C.记忆判断错误
D.操作、动作错误
参考答案：A, B, C, D
E-mail English is a new kind of written English that ______to save time.
A be being used B was being used C being used D is being used
女，9岁，左耳分泌性中耳炎鼓室积液用咽鼓管吹张法症状无改善，清除中耳积液的首选方法是（）
A.鼓膜切开术
B.鼓膜穿刺术
C.鼓室置管术
D.腺样体切除术
E.激素
