--- I’m still working on my paper.

--- Oh, you’ll miss the deadline. Time is __________.

A．running out

B．going out

C．using up

D．losing out

关于肾母细胞瘤的特点不正确是()

A．腹部巨大包块是本病的主要特点

B．多于3岁以前发病

C．也偶发于成年人

D．常见发热和高血压

E．常见明显血尿