[单项选择]患者,男性,50岁。上腹部不适伴恶心、呕吐2个月。呕吐物有时含有咖啡样物;间断解柏油样大便,体重下降5kg。查体:左侧锁骨上窝多个淋巴结肿大并相互融合。腹部触诊和直肠指检均未触及肿块。目前最适宜的辅助检查手段为() A. 锁骨上淋巴结切除活检 B. 腹部B超 C. 纤维胃镜检查 D. 上消化道钡剂造影 E. 腹部CT
第14题: [简答题]Questions 31-33 Complete the sentences below. Write NO MORE THAN TWO WORDS for each answer.A phobia may stem from heredity or ______. 参考答案:environmental issues