喉咽癌中最常见的为（）
A.喉咽后壁癌
B.环状软骨后区癌
C.梨状窝癌
D.会厌癌
E.扁桃体癌
参考答案：C
By the time the tornado ended, more than 2,000 people _____.
A．has injured
B．has been injured
C．had injured
D．had been injured
所谓常能，是指最基本的生活能力、活动能力。
