I have _____ old pen and my brother has _____ new one.[ ]
A.a, an
B.an, a
C.a, a
答案:B
已知抛物线的对称轴为直线x=1,且通过点(0,2)和点(-1,0),求此抛物线的解析式.
承受国有土地使用权支付的土地出让金,要计征契税;因减免土地出让金的,也应减免契税。()