溃疡病致瘢痕性幽门梗阻最典型的临床表现为（）
A．呕吐
B．腹胀
C．消瘦
D．贫血
E．脱水
参考答案：A
________, we’d bought a city map. We may get lost without it.[ ]
A. Lucky
B. Really
C. Finally
D. Luckily
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