过氯酸钾释放试验可用于()
A.诊断甲状腺功能亢进
B.判断甲状腺有无碘的有机化障碍
C.动态观察吸碘率
D.慢性淋巴性甲状腺炎的辅助诊断
E.以上都正确
参考答案:B, D
对有关实验现象的描述正确的是
A.磷在氧气中燃烧放出白烟
B.碳在空气中燃烧发出耀眼的白光
C.铁丝在氧气中燃烧生成四氧化三铁
D.硫在氧气中燃烧发出淡蓝色的火焰
— You are late again, Tom?
— Sorry, but I got _____ a heavy traffic jam. [ ]
A. caught in
B. taken in
C. put off
D. held by