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
Ans:B
我了解這題是在考recording and then digitizing~的對稱, 還有not...but...的對稱, 但是我有個小疑問, 我對於and then前加逗點, 很有疑問, 如果不是三個詞的and 對稱, 而and前卻又加逗點, 會有種補助說明且and後必須是完整的句子
這是正常三個詞的and對稱, 所以最後一個and前須加逗點
ex: Annie has an apple, a pen, and a book.
這是and當補助說明, 在and前加逗點, 且and必須是完整的句子
ex:Annie has an apple, and Bob is very happy that Annie has an apple.
（PS：Sorry, 句子舉的很爛
）
在76題裡也出現不是三個詞的and對稱, 但卻在and前加了逗點, 真的很容易讓人以為是and補助說明, 所以發現and後的句子並不是完整的句子, 就讓人選不下去> <, 想請問這裡的and前加逗點是不是怕讀者誤以為,and then digitizing and analyzing the sound emissions on computers是跟as they were slowly stretched out in an otherwise silent chamber做對稱？？？？
