有关老年人下述哪项是错误的（）
A.肾血流量减少
B.发生氮质血症较多见
C.醛固酮减少
D.肌酐清除率降低
E.肾小球滤过率降低
参考答案：B
Soon after the mud-rock flow hit Zhouqu, Gansu Province, many soldiers came to the ______ as many people were trapped underground.
A．shelter
B．identity
C．rescue
D．Disaster
诊断肠梗阻最主要的根据是
A．间歇性腹痛
B．腹部隐痛
C．恶心、呕吐
D．肛门停止排便排气
E．X线见腹部有多个液气平面及胀气肠袢
