— Where is Mary's skirt?
— ______ is on the bed. [ ]
A. She's
B. Her
C. Hers
答案:C
确诊肿瘤的主要依据是()。
A.CT
B.MRI
C.PET-CT
D.细胞学或组织病理学检查
E.超声
光幕反射