治疗行痹的首选方是（）
A.桂枝芍药知母汤
B.桂枝汤
C.防风汤
D.麻黄汤
E.越婢汤
参考答案：C
The road conditions there turned out to be very good，________ was more than we could expect.
A．it
B．what
C．which
D．that
