测量总β放射性的方法称为(),使用的放射性测量装置是()。
参考答案:薄样法;低本底α、β测量仪
–What do you _________ the Korean TV series My Love From Another Star?
–Pretty good. It is popular with many people.
A. care for B. hear about C. think of
职业中毒可分为几种临床类型
A.急性、亚急性两种B.急性、慢性两种C.轻度、中度、重度三种D.急性、亚急性、慢性三种E.轻度、重度两种