第13题: [单项选择]{{I}}Questions 18-21 are based on the following dialogue.{{/I}}At what time of the day does the conversation most probably take place A. Before breakfast. B. Late in the morning C. Mid-afternoon. D. Late in the evening. 参考答案:C
第14题: [单项选择]下列哪种消化性溃疡最易发生出血() A. 十二指肠球部溃疡 B. 十二指肠球后溃疡 C. 胃小弯溃疡 D. 幽门管溃疡 E. 复合型溃疡 参考答案:B