求各位大牛解释一个简单的平行问题

lwx03021

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
答案是B 因为A中not continuous but consisted结构不平行,continuous是形容词,consisted是动词。我不明白B中得NOT BUT难道就平行了嘛？？？ 谢谢各位了