阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为16—25的相应位置上。

Stephen Hawking, who is the most famous physicist, was born in Britain on January 8^th, 1942. As a child, he was enthusiastic about 16     (design) complicated toys but    17  (fortune), in his twenties, he suffered   18   a disease that was impossible to be cured,    19    was a great challenge for him. However, not only was he positive about the misfortunes    20     eventually he defeated all the obstacles but also he was  21  (absorb) in his research in the universe. In 1988, his best-seller A Brief History of Time was published, 22     which he put forward the idea  23   time itself has a beginning, and that it will have  24  end. In conclusion, he has made outstanding  25  (contribute) to the fields of cosmology and quantum gravity.

患儿，女，8个月，咳嗽1周余，3天前起咳嗽加重伴发热，体温波动于37.5～38.3℃，半天来突然烦躁、气促急诊入院。查体：T37.5℃，P185次／分，R65次／分，体重8kg，头围44cm，神倦，烦躁不安，面色苍灰，明显喘憋。方颅，前囟2.5cm×2.5cm。鼻扇，口周发绀。轻度漏斗胸，肋缘外翻，心率185次／分，律整，心音低钝，无杂音，双肺可闻多量喘鸣音及中小水泡音，呼气延长。肝右肋下3.5cm，质软，边略钝，脾未扪及。入院后床边胸片示双肺纹理增粗，可见小斑片状阴影多处，轻度肺气肿。

可继续行下列检查，除外（）。

A.血常规及细胞形态

B.鼻咽、气管分泌物、血等检测病原体

C.胸片、心电图、必要时血气分析

D.PPD试验、血电解质检查

E.超声心动图