微小病变病理特征是()
A.近曲小管上皮严重脂肪变性
B.系膜细胞及系膜基质弥漫增生
C.毛细血管袢广泛呈现双轨征
D.基膜增厚
E.毛细血管节段性硬化
参考答案:A
简述什么是电弧放电?
---What was the party like ?
---Wonderful . It is years _____ I enjoyed myself so much .
A.after
B.when
C.before
D.since