第7题: [单项选择]______ in his position, I'd have left there immediately. A. was I B. I was C. Were I D. I were 参考答案:C 答案解析:本题测试虚拟条件句的倒装。在省略订的虚拟条件句中需要用倒装结构(全部倒装),句子本应为:If I were in his position,…一本句大意:如果当时我处在他的位置,那我可能马上就会离开那
第26题: [单项选择]乙状结肠扭转时钡灌肠X线检查可见扭转部位钡剂受阻呈现 A. “倒3征” B. “杯口” C. “鸟嘴” D. “线状” E. “中断” 参考答案:C 答案解析:乙状结肠扭转多见于男性老年人,常有便秘习惯,或以往有多次腹痛发作经排便、排气后缓解的病史。除腹部绞痛外,有明显腹胀,而呕吐一般不明显。如做低压灌肠,往往不足500ml便不能再灌入。腹部X线平片显示马蹄