Find out the ________ between these two pictures and circle them with your pen.      [ ]

A. secrets                        

B. questions      

C. answers                        

D. differences

下列哪项可作为肾血管性高血压的主要诊断依据

A．近期发生的高血压

B．肾动脉狭窄

C．肾动脉造影有阳性发现

D．氮质血症出现

E．血肌酐升高