男性，45岁。食欲缺乏、中上腹隐痛不适2个月，腹部检查中上腹部扪及鸡蛋大小质地中等的包块，作胃液分析：胃酸缺乏、胃液呈咖啡色，下列哪一种辅助检查最有确诊价值（）。

A.X线胃肠钡餐

B.腹部彩超

C.核素显像

D.腹部CT

E.胃镜检查

A．(A) Because she likes the city’s mild climate that is beneficial to her health.

B．(B) Because she loves to work with young people and share her experience.

C．(C) Because she does not have the required certificate in business management.

D．(D) Because she does not think that she has earned quite enough from her previous job.