人参的功效是( )
A.大补元气,补脾益肺,生津止渴,润肺止咳B.大补元气,补脾益肺,生津止渴,止汗安胎C.大补元气,补脾益肺,生津止渴,养血益阴D.大补元气,补脾益肺,生津止渴,安神益智E.大补元气,补脾益肺,生津止渴,托毒生肌