以下各项检查中，对确定膀胱肿瘤最可靠的是( )

A．B超

B．CT

C．经膀胱镜检查+活检

D．尿细胞学检查

E．膀胱双合诊

My pen pal from America is coming to visit me . I’m thinking about ______________.

A．What present did I give her

B．how I will give her a surprise

C．where will we have a big meal

D．whether I planned a trip for her