There's __________ with your computer. You'd better __________ as soon as possible.
A:wrong something; have it repair
B:nothing wrong; have it repaired
C:something wrong; have it repaired
D:something wrong; have it repair
关于地球形状和大小的叙述,不正确的是( )
下列图形都是由同样大小的小圆圈按一定规律组成的,其中第①个图形中一共有6个小圆圈,第②个图形中一共有9个小圆圈,第③个图形中一共有12个小圆圈,…,按此规律排列,则第⑦个图形中小圆圈的个数为( )