求解prep76

penguinvino

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
请问，如果说recording、digitizing、analyzing 是平行的话，那为什么digitizing和analyzing 前面都有and呢？不是应该是三项平行在最后一项前面加and连接么？
所以说我选了D。。。。谢谢大牛解释

蓝色的影子

（ digitizing and analyzing ）放在一起看作为一个元素