题干
一 Could you tell me you will come back?
— In ten minutes.
A：how soon
B：how often
C：how long
D：how fast
答案(点此获取答案解析）
A
一 Could you tell me you will come back?
— In ten minutes.
A：how soon
B：how often
C：how long
D：how fast
，氮原子的结构示意图为 
，则氮化镓的化学式是（ ）。