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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
这个答案是B 但是B的话 NOT前面有个WAS 就变成了noise was consisted of... CONSIST这个词不该用被动的吧! |
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