将下面词语按要求归类。 

       载歌载舞        东张西望        一本正经        津津有味        大公无私   

       默默无闻        专心致志        迷惑不解        鞠躬尽瘁  

1．描写人物动作的：                                                                                                                    

2．描写人物神态的：                                                                                                                    

3．表现人物精神的：                                                                                                                   

患儿，6岁，心悸、乏力，易感冒，胸骨左缘可闻及杂音，扪及震颤。胸部正位摄片示心影增大，肺纹理多，呈充血状。最可能的诊断是（）

A.房间隔缺损

B.室间隔缺损

C.动脉导管未闭

D.肺动脉狭窄

E.法洛四联症