SF6 gas chemical properties are ()
A、SF6 gas is insoluble in water and transformer oil
B、At blazing temperatures it reacts with oxygen, argon, aluminum, and many other substances;
C、Under the action of arc and corona, SF6 gas will decompose, producing low-fluorine compounds, which can cause damage to insulation materials
D、The decomposition reaction of SF6 is closely related to moisture, so desiccation measures should be taken