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【单选题】Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of ads louder than the programming. In addition, t...
A.
TV stations always operate at the highest sound levels
B.
their sound levels are kept around peak levels
C.
their sound levels are kept in the middle frequency ranges
D.
unlike regular programs their intensity of sound varies over a wide range
【单选题】TEXT C Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of ads louder than the programming. In addi...
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
相关题目：
【单选题】单元音韵母ü是( )
A.
舌面、前、低、不圆唇元音
B.
舌面、前、高、圆唇元音
C.
舌面、后、高、圆唇元音
D.
舌面、后、高、不圆唇元音
【判断题】凡元音都是韵母或韵母的一个组成部分,但韵母不全是元音。
A.
正确
B.
错误
【判断题】そ、と的元音读音都是o
A.
正确
B.
错误
【判断题】以下这组词包含的元音不同。 beat/bit
A.
正确
B.
错误
【单选题】以下哪些是元音的发音特点：()。
A.
发音时声带颤动
B.
发音时发音器官不形成阻碍
C.
发音为乐音
D.
其他都对
【单选题】下列韵母中属于二合前响复韵母的是
A.
ia
B.
ie
C.
ua
D.
ai
【判断题】共鸣辅音带有一些元音的特点。
A.
正确
B.
错误
【多选题】元音和辅音的主要区别在于：发元音时， ；发辅音时， 。
A.
气流不受任何阻碍
B.
气流受到某部位的阻碍
【判断题】汉语音节中可以没有辅音，但是不能没有元音。()
A.
正确
B.
错误
【判断题】元音:11个元音音素.？
A.
正确
B.
错误
【单选题】Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of ads louder than the programming. In addition, t...
A.
TV stations always operate at the highest sound levels
B.
their sound levels are kept around peak levels
C.
their sound levels are kept in the middle frequency ranges
D.
unlike regular programs their intensity of sound varies over a wide range
【单选题】下列单词中没有二重元音的单词是（ ）。（ ）
A.
peina
B.
ciudad
C.
aojo
D.
/
【判断题】元音和辅音是音素的两个大类。
A.
正确
B.
错误
【单选题】TEXT C Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of ads louder than the programming. In addi...
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
【单选题】二合前响复韵母有( )。
A.
ai、ei、ua、uo
B.
ai、ei、ao、ou
C.
ao、ou、uo、ua
【多选题】下列属于后元音的有
A.
见图
B.
见图1
C.
见图2
D.
见图3