In the historical development of language, sound change is inevitable, such as sound loss, sound a______ and sound movement.

下列文件中，属于音频文件格式的是（） A: sound.avi B: sounld.swf C: sound.wav D: sound.jpg

下列文件中，一般属于视频文件的是______ A: Sound.jpg B: Sound.rpg C: Sound.avi D: Sound.bmp

A sound mind is inseparable from a sound body. The word “sound” means______.

That ____ quite interesting. A: aren't sound B: don't sound C: isn't sound D: doesn't sound

8.Primary _________means the direct imitation of sound by sound, of natural sound by human speech sound.

Simultaneous or overlapping articulations, as when the nasal quality of a nasal sound affects the preceding or following sound so that the latter becomes nasalized. If the affected sound becomes more like the following sound, it is known as anticipatory ; if the sound shows the influence of the preceding sound, it is perseverative .​​​​

(Multiple Choice) When the volume changes, the amount of sound change is equal in both the approaching sound and the receding sound, which one is more noticeable?（ ） A: the receding sound B: the approaching sound C: both of them

______ is a process by which one sound takes on some or all the characteristics of a neighboring sound, a term often used synonymously with coarticulation. If a following sound is influencing a preceding sound, it is called regressive assimilation; the converse process, in which a preceding sound is influencing a following sound, is known as progressive assimilation.

____________________, his idea was accepted by all the people at the meeting. A: Strange as might it sound B: As it might sound strange C: As strange it might sound D: Strange as it might sound