No book is ______interesting, so I take up the story______I stopped yesterday?

A．such; which

B．so; which

C．that; where

D．so; when

锅炉校验安全阀的顺序是（）。

A、先高后低（以动作压力为序）

B、先低后高（以动作压力为序）

C、先简后难