A:△ABC与△DEF能够重合
B:∠DEF=90°
C:AC=DF
D:EC=CF
我是小将军,给你们排排队。
A. It is ten dollars and thirty cents.
B. A hamburger for me, and a cola.
C. What do you want?
D. How much is it?
E. I want a hot dog, and you?
正确的顺序是:____
将晶体X加热分解,可得A、B、D、E、F和水六种产物,其中A、B、D都是中学化学中常见的氧化物,气体E是单质F所含元素的氢化物.