when _________ different cultures, we often pay attention only to the differences without noticing

the many similarities.[ ]

A. compared            

B. being compared    

C. comparing        

D. having compared

高肾素型高血压患者首选（）

A.阿替洛尔或卡托普利

B.美托洛尔或硝苯地平

C.硝苯吡啶或卡托普利

D.呋塞米或尼群地平

E.硝普钠或硝酸甘油