男性,24岁,出现肛门周围持续性跳痛,皮肤硬结红肿4天,并有局部压痛,可能出现了()
A.肛裂
B.外痔
C.肛门周围脓肿
D.坐骨肛管间隙脓肿
E.骨盆直肠间隙脓肿
参考答案:C
The recent conference on the effective use of the seas and oceans was another attempt resolving major differences among countries with conflicting interests.
A.resolve
B.resolves
C.to resolve
D.being resolved
以下存在语法错误的OPEN语句是哪一条?()
A.OPEN(8)
B.OPEN(8,FORM=‘UNFORMATTED’)
C.OPEN(8,ACCESS=‘DIRECT’)
D.OPEN(8,FILE=‘AA’)