病人术前脉率规则。44次/分。运动后仍然规则40次/分，提示下列哪种情况（）

A.正常

B.心室肥大

C.心房压过高

D.完全性房室传导阻滞

E.房室结性心律

There is still something we can try _____ those dying animals.

A．to save

B．saving

C．to be saved

D．being saved