怎样获得共反射点记录？
参考答案：
野外放炮记录，一般都是共炮点记录.如果采用多次覆盖观测系统把记录道按反射点进行组合，就可得到共反射点道集记录.
肝肾阴虚型鼓胀可选用（）
A.一贯煎
B.杞菊地黄丸
C.膈下逐淤汤
D.六味地黄丸
E.少腹逐淤汤
—Li Lin took the 8:00 bus to Fuzhou this morning.
—Really? He _________ a fast train. It’s much more comfortable to travel by fast train.
A．could have taken
B．should take
C．must have taken
D．can take
