单项选择题 听力原文：We've paid off the mortgage, so we're sitting pretty now.What is the current situation of the speakers since they have paid off the mortgage?A．They can buy beautiful furniture.B．They can afford large and comfortable house.C．They are better off than their neighbors.D．They are in a favorable position right now.

单项选择题 听力原文：Don't pay any attention to him ---he's had one too many.What does the speaker mean?A．You don't have to pay any attention to him for he has already had many people around him.B．You don't have to pay any attention to him for he will not take it seriously.C．You don't have to pay any attention to him for he has already got drunk.D．You don't have to pay any attention to him for he is busying dealing with many things.

单项选择题 患者，男性，72岁。排尿困难5年，近2个月加重伴食欲缺乏。直肠指诊前列腺明显增大，5cm×6cm，叩诊示膀胱已达脐下3横指。血BUN36mmol／L，Cr340μmol／L，B超示双肾中度积水。下面哪一种治疗最为合理（）