大家帮忙看一下OG补充的91题得这个都好的问题！！！！

deityc

Seismologistsstudying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected（A）
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor

答案是A，没有问题。但是A中在and前有个逗号，记得新东方说只有SVO，and SVO 才可以在and前加入逗号，为什么这题也可以？

deityc

题目 应为....逗号 不是 都好....手一抖 打错了

deityc

有没 同学帮着看一下啊

毛毛carina

~~这里是三个并列成分， 当然可以~~

A, B, and C

lllmmm

同意楼上

deityc

靠 晕了 想串了  谢谢二位