单、双声道调频发射机相同的测试项目包括信杂比、输出功率和()等

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问题多项选择题

单、双声道调频发射机相同的测试项目包括信杂比、输出功率和()等。(图像通道传输特性和伴音通道传输特性)

A.非线性失真

B.整机效率

C.噪声电平

D.载波跌落

E.音频振幅—频率特姓

答案

参考答案：A, E

选择题

Although the average reader spends more than 4,000 pounds on books in their lifetime, 55 percent say

they buy them for decoration and have no ________ of reading them.[ ]

A. advantage

B. attempt

C. evidence

D. intention

判断题

治疗手术后腹胀尿潴留多用新斯的明。