设函数f(x)=loga(x+b)(a>0,a≠1)的图像过点(2,1),其反函数的图像过点(2,8),则a+b等于( )。
4
He runs every day. ______, he has lost weight and become healthier.
A. However
B. In fact
C. As a result
D. In other words
紧紧围绕提高()水平深化党的建设制度改革
A、科学执政
B、民主执政
C、依法执政
D、依宪执政