Though he started late, Mr.Guo played the piano as well as, if________, Miss Liu.
A:not better than
B:not better
C:no better than
D:no better
下列词语中,没有错别字的一组是( )
如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是( )