我国古代四大发明不包括：（）
A、造纸
B、指南针
C、火药
D、兵器
参考答案：C
If I had seen the movie，I__________you all about it now.
A．would tell
B．will tell
C．have told
D．would have told
煤矿发生透水事故必须有哪两个基本条件？
