A:which; where
B:what; which
C:where; which
D:what; where
A. B. C. D. E. F.
你知道“苏湖熟,天下足”这句话表明了两宋时哪个地区成为全国最重要的粮仓( )
设f(x)= {x,0<x<12(x−1),x≥1 若f(a)=f(a+1),则f( 1a )=( )