A:
B:3
C:
D:
—You have been sitting on my hat and now it is badly _________.
—Sorry. I will ask my boss for _________ on my salary to buy you a new one.
设M={x|0≤x≤4},N={y|﹣4≤y≤0},函数f(x)的定义域为M,值域为N,则f(x)的图象可以是( )