彭某，男，70岁。因过劳后诱发左侧胸部剧烈疼痛3小时，疼痛向左肩放射，伴心悸，气短，头晕，乏力，大汗出，四肢厥冷，舌淡紫，苔白腻，脉沉细弦，其治则宜（）

A.益气温阳，活血通络

B.宣通胸阳，散寒化浊

C.补益心气，活血化瘀

D.益气养阴，活血化瘀

E.通阳泄浊，豁痰开结

_______ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.

A．If

B．While

C．Because

D．As