胸腔中量积液时形成的X线上缘弧线曲线,与下列哪项无相关()。 A.胸腔的负压 B.液 发布时间:2017-08-09 00:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 胸腔中量积液时形成的X线上缘弧线曲线,与下列哪项无相关()。A.胸腔的负压B.液体的重力C.肺组织的弹力D.液体的性质E.液体的表面张力
题型:单项选择题 Not until he left his home _____ to know how important the family was for him. [ ]A. did he begin B. had he begun C. he began D. he had begun 查看答案