消化性溃疡最常见的并发症是( )
A.胃肠穿孔
B.幽门梗阻
C.休克
D.上消化道出血
E.癌变
参考答案:D
_______all kinds of difficulties,the workers have made rapid progress in the construction of the World Expo 2010 Shanghai.
A.With
B.For
C.Under
D.Beyond
下列______是汇票的绝对必要记载事项。
A.票据文句
B.支付文句
C.票据金额
D.付款人名称