人参具有的功效有哪些（）。
A.大补元气
B.补脾益肺
C.补气升阳
D.生津
E.安神益智
参考答案：A, B, D, E
Food supplies in the flood-stricken area ______. We must act immediately before there’s none left.
A．have run out
B．are running out
C．have been run out
D．are being run out
