Most ordinary people in Iraq are living in poverty and panic now, in other words, their basic rights

aren't________.[ ]

A. guaranteed  

B. satisfied

C. recognized  

D. proved

上消化道大出血最常见的病因是（）。

A．胃十二指肠溃疡 

B．门静脉高压症 

C．应激性溃疡 

D．胆道出血 

E．胃癌