【单选题】本节例程所使用的的1602液晶,第2行第2个显示单元的显存地址是什么?
【简答题】He had failed in the exam. It made his father very angry. He had faild in the exam,
【单选题】琼脂糖免疫扩散试验中所用琼脂糖浓度为()。
【单选题】关于琼脂糖凝胶的性质说法错误的是:
D.
浓度大的琼脂糖凝胶可以分离小分子的 DNA 片段
【简答题】琼脂的主要成分为琼脂糖和 两类。A. 琼脂胶
【单选题】琼脂糖凝胶Sepharose4B表示( )
【简答题】he stayed up all night to study for the exam he opened the exam booklet to begin and fainted