单项选择题 患者女，35岁。甲状腺肿大、突眼、心慌、失眠，心率100次／分，血压140／90mmHg（18.6／12.0kPa）诊断为甲亢。5. 甲亢患者在术前不宜使用下列哪种药物（）

单项选择题 Her uncle′s health has greatly improved______ he stopped smoking.

单项选择题 根据以下材料，回答题Every day 25 million U.S. children fideschool buses. The safety record for these buses is much better than forpassenger cars; but nevertheless, about 10 children are killed each year ridingo