______ after a long walk,Tom called and said he couldn't come to the party. [      ]

A. Having worn out  

B. Being worn out

C. To be worn out  

D. Worn out

有关鼻腔鼻窦恶性肿瘤临床特点，下述哪项是错误的（）

A.好发于40～60岁年龄组

B.病理以鳞癌为主

C.大多数为蝶窦癌

D.以原发为主

E.就诊时晚期病人多