判断题
In the atomic absorption spectrophotometer, the currently commonly used light source is a tungsten lamp.
错误(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
单项选择题 下列哪幅画作是唐代张萱的作品？
单项选择题 2-1. For the crystal with formation of Schottky defects, the volume of the crystal will ( ), and the density of the crystal will ( ).
判断题 启事与海报都不具有强制性和约束力 。 正确 错误
