-- What beautiful shoes you're wearing! They must be expensive.
-- No, they only 10 yuan.
A:spent
B:took
C:paid
D:cost
下列诗句中,能够说明地球形状的是( )
函数f(x)=2ax+1﹣3(a>0且a≠1)的图象经过的定点坐标是 ____.