单项选择题
A.消化性胃溃疡出血 B.消化性十二指肠球部溃疡出血 C.应激性溃疡出血 D.食道静脉曲张破裂出血 E.痔疮出血
A.1×9% B.2×9% C.3×9% D.4×9% E.5×9%
A.7×9% B.6×9% C.5×9% D.4×9% E.3×9%