扫描二维码，直接登录
题库 / OG2017V-SC-295
Seismologists studying 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.
the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected
one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor
B选项：strange electromagnetic signals前面少了the, 后面是v+done,构成独立的句子了，不符合平行结构；
C选项：不平行
DE选项：不平行