问题
单项选择题
精索静脉曲张多发生于左侧，其原因除了下列哪项
A．左侧精索静脉呈直角注入左肾静脉
B．左侧精索静脉走行距离长
C．左侧精索静脉注入下腔静脉
D．左侧精索静脉受到乙状结肠的压迫
E．左侧精索静脉缺乏瓣膜使静脉血液反流
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
精索静脉曲张多发生于左侧，其原因除了下列哪项
A．左侧精索静脉呈直角注入左肾静脉
B．左侧精索静脉走行距离长
C．左侧精索静脉注入下腔静脉
D．左侧精索静脉受到乙状结肠的压迫
E．左侧精索静脉缺乏瓣膜使静脉血液反流
参考答案：C
根据对话内容，从方框内所给的选项中选出最佳选项，将其答案的序号写在方框下面的横线上,选项中有两项为多余项。 A: You must be really excited about leaving for America tomorrow, Li Ping! B: Yeah.小题1:______ A: Nervous about what? B: I don’t know many of the customs and manners in the USA.小题2:______ A: Sure. B: 小题3:______ A: Well, it’s important to be on time when you’re invited for dinner.小题4:______ Americans expect their guests to be on time. B: Then how long may I stay there? A: 小题5:______ Or you seem to have come only for the meal.When your friends seem to be getting tired and running out of things, it’s time to leave.The next day, call or write a thank-you note to say how much you enjoyed the evening.
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