以腰膝酸软,身肿尿少为特征的证候是()
A.肾虚水泛证
B.肾阳虚证
C.肾阴虚证
D.肾精不足证
E.肾气不固证
参考答案:A
A study shows that a tropical fish in America can survive (存活) _____ water for up to 66 hours. [ ]
A. beyond
B. in
C. out of
D. from
简述烧结用铁矿粉准备包括的主要内容。