肝硬化导致门静脉高压的因素为
A.脾脏淤血肿大
B.腹腔积液形成
C.肝内血管床的缩小
D.肝内血管受到再生结节的挤压
E.门静脉、肝动脉、肝静脉小枝间有短路形成
参考答案:C,D,E
The teacher found him ________ and gave him some different homework to do every day.
A.was clever
B.was a clever boy
C.a clever boy
D.clever boy
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性()
A.选项A
B.选项B
C.选项C
D.选项D