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sound emissions


cartera

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By recording the noise of crinkled wrappers as they were slowly stretched out in an otherwise silent chamber, and then digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not continuous but consisted of individual bursts or pops just thousandths of a second long.

 

A. digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not

 

B. digitizing and analyzing the sound emissions on computers, a team of scientists found that the noise was not

 

C. digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not to be

 

D. the sound emissions were digitized and analyzed on computers, a team of scientists found that the noise was not

 

E. the sound emissions were digitized and analyzed on computers, a team of scientists found the noise not to be

 

OA

B

 

 

 

 

 

How how differenciate between B and C?

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