高血压病患者遵从医嘱服药的强化因素是（）。

A.患者知晓服药能有效控制血压

B.患者能方便地就医、取药

C.患者的经济条件足以支付较高的医药费

D.患者认识到改善健康状况的重要性

E.患者感到按医嘱服药后血压得到了有效控制

In his effort to prevent his company from _____, he worked to his limit, thus _____.  [ ]

A. breaking down; breaking down his health    

B. closing down; broke down his health 

C. closing down; his health broke down        

D. breaking down; his health breaking down