第4题: [单项选择]From this passage we learn another fact that______. [A] Sahara desert has become larger. [B] Southern California desert has become larger. [C] African continent has become larger. 参考答案:A 答案解析:[解析] 事实理解题。最后一句话the rapid,growth of the Sahara Desert during the last ten years.“在过去的十年里撒哈拉大沙漠增长很快。”
第12题: [单项选择]患者男,45岁。餐后上腹胀满,恶心呕吐,上腹部隆起两周,3个月前有跌跤,上腹部触及台阶史。检查:一般情况好,上腹正中膨满,可触及一个15cm×12cm略呈椭圆形,稍具囊性的肿块,轻度压痛,X线钡餐透视见胃及横结肠均向下移位,诊断应首先考虑() A. 肝囊肿 B. 肠系膜囊肿 C. 腹膜后囊肿 D. 胰腺假性囊肿 E. 胆总管囊肿 参考答案:D 答案解析:患者有腹部外伤史,胰腺损伤可能性较大。胰腺假性囊肿常在病后3~4周形成,多位于胰体尾部,大小几毫米至几十厘米,可压迫邻近组织引起相应症状,囊肿穿破可致胰源性腹水。本题应选D。