今天复习到169题,晕了。 169. 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. (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 我觉得A平行,可是我一看到B是个句子就选了。冒号后面可以接短语就行是么?答案A |