无产阶级的历史使命是()
A.进行社会主义革命
B.开展对资产阶级的阶级斗争
C.推翻资本主义社会,实现社会主义和 * * 主义
D.建立无产阶级专政
参考答案:C
After the traffic accident, no one______ except a few people who were badly injured.
A.survive
B.was survived
C.survived
D.was surviving
消化性溃疡最常见的并发症是
A.出血B.穿孔C.幽门梗阻D.癌变E.电解质紊乱