今有下列三个氧化还原反应: 2FeCl3+2KI2FeCl2+2KCl+I2 2FeCl2+Cl22FeCl3 2KMnO4+16HCl2KCl+2MnCl2+8H2O+5Cl2↑。若某溶液中含有Fe2+和I-,要除去I-而不氧化Fe2+和Cl-,可以加入的试剂是( )
His sister left home in 1998, and _______since.
What do you mean, there are only ten tickets? There _____ be twelve
Could I speak to ______ is in charge of International Sales please?
How much _______ she looked without her glasses!
Let’s go to ______ cinema – that’ll take your mind off the problem for _____while.