简述古地震的调查方法。
参考答案：
1.钻探和槽探2.地球物理勘探（地震勘探法、电法）3.遥感地质学法4.地貌学法
"I'm more nervous right now than when I ______," Jane said, as she saw the group of reporters waiting
anxiously at the exit of the gym.[ ]
A. had competed
B. compete
C. was competing
D. have competed
SG1025引进型锅炉送风机并列过程中应注意什么？
