John worked hard at his lessons and gained________to a famous university last year. [ ]

A. permission  

B. admission

C. agreement  

D. freedom

关于胃大部切除术的描述，正确的是

A．胃溃疡首选毕Ⅱ式手术
B．毕Ⅱ式手术术后并发症较毕I式多
C．十二指肠溃疡首选毕I式手术
D．毕Ⅱ式手术较毕Ⅰ式手术更符合正常生理
E．对于手术中发现溃疡无法切除的十二指肠溃疡，可旷置溃疡行毕Ⅰ式手术