A:制备AlCl3、FeCl3、CuCl2均不能采用将溶液直接蒸干的方法
B:三者的单质放置在空气中均只生成氧化物
C:三者对应的氧化物均为碱性氧化物
D:电解AlCl3、FeCl3、CuCl2的混合溶液时阴极上依次析出Cu、Fe、Al
Our school is so famous that _______ people come and visit it every term.
—Yes, he is.
垂直于同一条直线的两条直线一定
— Mom, Peter_____ to teach me to play table tennis.
— How lucky you are! He is good at teaching table tennis.