The only problem with the debate last week was that the beginning sounded more like a personal attack than a dispassionate, intellectual arguing .

A．discussion

B．argument

C．talk

D．speech

某患者左肾盂单个结石直径约1～2cm大小，右肾盂多发结石，IVP显示双肾积水。处理应是

A．左肾盂切开取石

B．左肾造瘘

C．右肾盂切开取石

D．右肾造瘘