门脉高压最常见的原因是（）
A.肝静脉梗阻
B.胆总管梗阻
C.肝硬化
D.肝大
E.肝动脉梗阻
参考答案：C
If Tom had spent more time studying, he able to do well in the test now.
A．will be
B．would be
C．has been
D．would have been
产生( )破坏前，在基础周围地面有明显隆起现象。
A．整体剪切 B．局部剪切 C．冲切剪切 D．不均匀沉降
