试题与答案

奶牛,瘤胃、瓣胃蠕动音减弱,按压右侧第7~9肋间肩关节水平线上下,病牛躲闪、反抗;粪

题型:单项选择题 A2型题

题目:

奶牛,瘤胃、瓣胃蠕动音减弱,按压右侧第7~9肋间肩关节水平线上下,病牛躲闪、反抗;粪便减少、干硬,呈算盘珠状,表面有黏液,粪内有多量未消化的饲料和粗纤维。如采用手术治疗,其最佳切口部位是()

A.左肷部前切口

B.左肷部后切口

C.右肷部前切口

D.右肷部中切口

E.右肷部后切口

答案:

参考答案:C

解析:瓣胃阻塞是由于瓣胃收缩力减弱,瓣胃内积滞干固食物而发生阻塞的疾病。临床上表现为瘤胃、瓣胃蠕动音减弱,触压右侧第7~9肋间肩关节水平线上下,表现疼痛不安,躲避检查。粪便干少,色暗成球,算盘珠样,表面附有黏液,粪内含有多量未消化的饲料和粗长的纤维,后期排粪停止。根据奶牛的临床表现特征,可以判定奶牛发生瓣胃阻塞。治疗方法是在右肷部前切口施行瓣胃切开术。因此,采用手术治疗其最佳切口部位是右肷部前切口。故答案选择C。

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小题3: Hardly             (他到达) at his office when he realized he had left his report at home.(arrive)

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小题5:But for the teacher’s help, I ______________ (不可能通过) the exam. (pass)

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— Sorry, I ______________  (还没有把胶片冲洗出来) yet. (get)

小题7: Mr Johnson demanded that the problem              (讨论) at the meeting next week. (discuss)

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