Our neighbors gave ___a baby bird yesterday that hurt___ when it fell from its nest.

A．us, it

B．us, itself

C．ourselves, itself

D．ourselves, it

患者因急性心肌梗死入院。入院第3天，于心尖部出现3/6收缩期杂音，同时心力衰竭逐渐加重。使用纠正心衰的药物效果很差而死亡。最可能的诊断为心肌梗死并发

A．室间隔穿孔

B． * * 肌或腱索断裂

C．梗死后综合征

D．心室游离壁破裂