We have to______the costs of the new system against the benefits it will bring.

A．compare

B．weigh

C．judge

D．consider

症见胸闷气短，遇寒则痛，心痛彻背，形寒肢冷，动则气喘，心悸汗出，不能平卧，腰酸乏力，面浮足肿，舌淡胖，舌苔薄白，脉沉细。证属（）

A.寒滞心脉

B.心血瘀阻

C.心肾阳虚

D.心肾阴虚

E.心气亏虚