消化性溃疡病最常见的并发症是
A.穿孔
B.幽门梗阻
C.恶变
D.出血
E.贲门狭窄
参考答案:D
— Would you get me a bar of chocolate from the kitchen, dear?
— _____ one?[ ]
A. Other
B. Every
C. Another
D. More
当前的数据处理可大致地划分为两大类:______和分析型处理。