当内生肌酐清除率(Ccr)为15ml/min时,肾功能的分期是()
A.肾功能正常
B.肾衰竭代偿期
C.肾衰竭失代偿期
D.肾衰竭期
E.肾衰竭终末期
参考答案:D
“China has a long way to go before it becomes modernized, “ Premier Wen said, _______ "We must always keep sober-minded over it".
A. to stress B. having stressed C. stressing D stressed
与一般心脏相比,运动员心脏表现出哪些结构功能特点?