第14题: [单项选择]Noise differs from sound in that ______. A. noise interferes with the task being done B. noise is a special type of loud sound C. noise is usually unavoidable in big cities D. noise can be defined more precisely than sound 参考答案:A 答案解析:[精解] 文章的第四行:That noise is sounds that are unrelated to the task at hand.
第30题: [单项选择]慢性湿疹最需与下列哪种疾病鉴别 A. 急性湿疹 B. 慢性单纯性苔藓 C. 荨麻疹 D. 特应性皮炎 E. 药疹 参考答案:B 答案解析:慢性湿疹常呈不同程度的苔藓样变,皮肤损伤境界清楚,慢性病程,痒感明显。需与慢性单纯性苔藓(神经性皮炎)相鉴别,后者常发于颈部、肘、膝关节伸侧及骶尾部,呈典型的苔藓样变,无渗出倾向,瘙痒呈阵发性。