It won’t be______he______to Taiwan for further study on computer technology.

A．long before;will go

B．before long;goes

C．long before;goes

D．before long;will go

均质堤防的浸润线，在起点与终点之间以（）连接。

A.直线

B.折线

C.圆弧线

D.平滑渐变的曲线