Your shoes_______. You’d better come to get them in half an hour.

A．are mending

B．have mended

C．are being mended

D．have been mended

下列关于卵巢癌MRI的描述，正确的有（）

A.卵巢癌囊性部分厚薄不均，可见结节状或菜花状突起

B.盆腔内软组织肿块，与子宫分界不清

C.实性肿瘤于T₁WI呈略低信号，T₂WI呈高信号

D.增强扫描肿瘤无明显强化

E.肿瘤内部有坏死或出血时，病灶信号可不均匀