---Why didn't you tell me the fact earlier?

---I _____ it for granted ______ you knew it.

A．thought; as

B．considered ; as

C．regarded; that

D．took; that

制冷系统出现高压报警，可能是由（）。

A.氟里昂注入量偏少

B.室外冷凝器翅片脏堵

C.系统内有堵塞引起局部节流

D.蒸发器风机风量偏小