女性，32岁，风心病二尖瓣狭窄并关闭不全8年，近2周心悸，气急不能平卧，BP95/70mmHg，心率170次／分，律齐，心尖部双期杂音，两肺底有湿啰音，ECG：阵发性室上性心动过速，治疗首选（）。

A.维拉帕米

B.静注氯化钾

C.同步电复律

D.压眼球或颈动脉窦

E.毛花苷C

It was Xu Beihong ________ developed the tradition of combining poetry with painting ________

had a leading position in the history of modern Chinese folk art. [    ]

A. that; that  

B. what; that

C. which; that  

D. who; that