[单项选择]According to the passage, the maximum intensity of sound coming from commercials ________.
A. does not exceed that of programs B. is greater than that of programs C. varies over a large range than that of programs D. is less than that of programs
参考答案:A 答案解析:[解析] 事实细节题。根据第一段第四句(According to one NBC executive,no difference exists in the peak sound level of a