【判断题】乙酸是一种弱电解质,在水溶液中部分解离。
【单选题】What is an illusion?
A.
It is a sensory misperception or misconception.
C.
It is when you see, hear, feel or taste something that is not really there.
D.
It is verbal aggression
【单选题】在Excel中,定义公式的开头符号是( )
【简答题】十进制数 27对应的二进制数为 ,八进制数为 。
【判断题】乙酸是一种弱电解质,在水溶液中部分解离。