下列室上性心动过速治疗的组合中，哪些项正确（）

A.合并冠心病心绞痛--普萘洛尔静脉注射

B.合并心肌病心衰者--胺碘酮静脉注射

C.合并洋地黄中毒--电复律

D.合并休克--普鲁卡因酰胺静脉注射

E.合并预激综合征--维拉帕米静脉注射

We are not conscious of the extent of which work provides the psychological satisfaction that can make the difference between a full and empty life.()

A. to which

B. in which

C. at which

D. by which