一个平行四边形的面积是48平方厘米，底是12厘米，高是______厘米．
48÷12=4（厘米）；
答：高是4厘米．
故答案为：4．
唐太宗是如何吸取隋亡教训的？你能举例说明吗？
_____________________________________________________________________________
— What did he want to know, Jack?
— _______ that we would have the picnic on Sunday. [ ]
A. what it was
B. when was it
C. whether it was
D. where it was
