乙肝病毒相关性肾炎最常见的病理改变是（）
A.轻微病变
B.局灶硬化型
C.系膜增生型
D.膜性肾病
E.膜增生型
参考答案：D
一单独基础中心下1.0m处附加应力是80kPa，则其角点下1.0m处的附加应力为（）
A.102.6kPa
B.83.2kPa
C.92.8kPa
D.61.8kPa
Sailing vessels are stand-on over power-driven vessels except（）.
A.in a crossing situation
B.in a meeting situation
C.when they are the overtaking vessel
D.on the inland waters of the PR China
