下列胸部CT检查特点的描述，错误的是（）

A.CT是肺部疾病诊断的首选方法

B.对纵隔旁、横膈周围及胸膜下病灶显示较胸片好

C.横断面显示，克服胸片上的影像重叠

D.冠状面和矢状面重建像分辨率较低

E.对纵隔内软组织分辨率不高

— I hear Tom is working hard at his lessons.    

— I'm _____ he will pass the exams this time. [ ]

A. afraid

B. surprised

C. sure

D. sorry