-Tom is wise enough to achieve his success.

-But in my opinion,he is________than wise.[ ]

A．luckier  

B．more lucky

C．much luckier  

D．rather lucky

褥疮性溃疡的溃疡特点是

A．溃疡孤立存在，表面微凹，少量黄色渗出，周缘充血
B．溃疡深达粘膜下，边缘高起，咽部及口角可见瘢痕
C．溃疡与刺激物相邻，周缘白色水肿及角化
D．溃疡较深，边缘不整，基底有浸润
E．溃疡浅表，基底暗红色桑葚样肉芽肿，边缘鼠啮状