皮革状胃,以下X线征象哪项是错误的()
A.胃黏膜皱襞形态不变
B.胃腔缩小
C.幽门管多呈关闭状态
D.胃壁蠕动消失
E.食管无扩张
参考答案:C
国家药品监督管理部门已批准上市的,已有国家药品标准的药品注册申请属于()
A.新药申请
B.补充申请
C.仿制药申请
D.进口药品申请
以下选项中,正确的if-else语句是 ( )
A.if(x!=0) printf("%d",x) else printf("%d",-x);
B.if(x!=0) x=x+y;printf("%d",x); else printf("%d",-x);
C.if(x!=0) x=x+y;printf("%d",x); else printf("%d",-x);
D.if(x!=0) x=x+y;printf("%d",x); else printf("%d",-x);