第17题: [单项选择]精索静脉曲张多见于左侧原因应除外 A. 左侧垂直进入肾静脉 B. 左侧受乙状结肠压迫 C. 肠系膜上动脉和主动脉,在搏动时压迫左肾静脉,影响左精索静脉 D. 精索静脉周围的结缔组织薄弱,瓣膜功能不全,左侧影响大 E. 下尿路梗阻时,可发生左精索静脉曲张 参考答案:E
第18题: [单项选择]We all knew from the very ______ that the plan would fail. Now you see it becomes true. A. outbreak B. outcome C. outflow D. outset 参考答案:D 答案解析:[分析] 形近识别
A.oubreak(战争的)爆发,(疾病的)发作;B.outcome结果,成果;C.outflow流出,流出物;D.outset开端,开始;此句意为:在一开始,我们就都知道