No conclusion _______ about whether to tear down the old buildings for a theme park until several

discussions have been held. [ ]

A. will be reached    

B. is reached    

C. is being reached    

D. has been reached

男，25岁。服吲哚美辛数片后出现腹痛，今晨呕咖啡样胃内容物100ml。既往健康。

确诊需要检查的项目首选（）

A.血清胃泌素测定

B.急诊胃镜检查

C.上消化道钡剂

D.B型超声检查

E.胃液分析