GAP规定,鲜用药材可采用保鲜方法不包括()
A.冷藏
B.沙藏
C.罐贮
D.烘干
E.使用符合国家有关食品添加剂规定的保鲜剂和防腐剂
参考答案:D
已知定义在R上的增函数f(x)满足f(-x)+f(x)=0,x1,x2,x3∈R,且x1+x2>0,x2+x3>0,x3+x1>0,则f(x1)+f(x2)+f(x3)的值( )
A.一定大于0
B.一定小0
C.等于0
D.正负都有可能
There, a big memorial has been built______ him, who devoted himself to the poor.
A.in favor of
B.in memory of
C.in face of
D.in need of