When a persons voice is recorded by an instrument, its voice frequency spectrum is called his sound print .
Like a fingerprint, everybodys sound print is different.
5. A)hear B) understand
C) distinguish D) record
How can computers 5 his sound?
5. C Distinguish 是文章主题词identify的近义词,因此C很可能是答案。 空格所在的句子说计算机怎样才能...他的声音?,由此排除B, 接下来的句子说首先, 他的声音被记录下来, 这允许计算机熟悉他的声音, 由此排除A, D, 因此C是答案。
考点:文章主题词。
First, his voice is recorded, which allows the computers to become familiar with his voice.
6. A)series B)package
C)line D)pair
It will then turn his sound characteristics into a 6 of digits .
6. A 空格所在的局部结构说一...的数字, a package of 、a line of 、a pair of 与 digits 都不搭配, 只有a series of digits 最合适。
考点:常见量词。
These digits represent the frequency, pitch倾斜度,投, 掷) and rhythm of the persons voice.
7. A) origin B)cause
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