颞下窝的后界是（）
A.颌后静脉
B.颞骨茎突
C.颞骨乳突前面
D.面动脉
E.颈内静脉
参考答案：B
—He was a real sportsman, ________ he is not very well known.
—________. Besides, he was young. [ ]
A. though; I am afraid not
B. since; You are sure
C. even if; I agree absolutely
D. because; That's that point
如诊断为食管鳞癌，合理的治疗方案是()
A．放疗
B．化疗
C．食管内支架
D．食管癌根治手术
E．胃造瘘术
