【单选题】Faraday gave ________ most of his money to the poor. When he grew old, he did not have enough money left to live on.
【简答题】倾注平皿时,平板计数琼脂应冷却至____°C±____°C
【单选题】He likes reading very much.Most of his money on books.
【单选题】关于颞下颌关节内强直的病因下列哪点是错误的()
【多选题】乙酸乙酯制备实验中,在反应体系中必须加入少量浓硫酸,其作用是( )?
【单选题】He left most of his money to his sons; his daughter only received a ______ share of his wealth.
【单选题】三相绕线式异步电动机通常采用()方法来调速。