She was so stubborn that she wouldn’t change her opinions.
A. unwilling
B. talented
C. obstinate
D. determined
Losing the job was bad, but even worse was the feeling that I had ____ my dear wife and children.
A. let alone
B. let down
C. let off
D. let up
2岁患儿，发热、咳嗽2d，惊厥昏迷1d。查体：体温39℃，鼻翼扇动，双肺细湿啰音，心率136/min，腹软，肝右肋下1.5cm。可除外以下哪项诊断
A. 支气管肺炎
B. 中毒性脑病
C. 毒血症
D. 脑水肿
E. 心力衰竭
下列哪种方法不能预防哮喘发作
A. 色苷酸钠
B. 酮替酚
C. 皮质激素
D. 脱敏疗法
E. 异丙托溴胺
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