A. 腹部B型超声 B. X线腹部立位片 C. 内镜 D. 腹腔穿刺
A. 呼吸道感染 B. 精神紧张 C. 钠摄入过量 D. 药物负性肌力作用
A. Because she is ill. Because she is cold. C. Because she likes buying heavy coats in summer. D. Because heavy coats are cheap in summer.
A. 正确 B. 错误