题干
My grandmother eats food, so she is in good .
A：health; health
B：healthy; healthy
C：health; healthy
D：healthy; health
答案(点此获取答案解析）
D
My grandmother eats food, so she is in good .
A：health; health
B：healthy; healthy
C：health; healthy
D：healthy; health
,a,b,c∈R,且a+b>0,a+c>0,b+c>0,则f(a)+f(b)+f(c)的值( )
