A:①喷出岩②岩浆③侵入岩④变质岩⑤岩浆岩⑥沉积岩
B:①岩浆②侵入岩③变质岩④沉积岩⑤沉积物⑥喷出岩
C:①喷出岩②沉积物③变质岩④沉积岩⑤岩浆⑥侵入岩
D:①喷出岩②侵入岩③变质岩④岩浆⑤沉积岩⑥沉积物
- How long does it take to get to the airport?
- Forty minutes. But it's foggy today. I'm not sure _________ the highway will be closed soon. Let's set off earlier.
鉴别O2、CO、CO2三种气体,可行简便的方法是( )