在相同的温度和压强下，二氧化氮和二氧化碳两种气体的分子数相同，则下列它们的（ ）一定相同。
（1）体积（2）所含原子个数 （3）物质的量（4）质量 （5）密度
| A．只有（1）（2）（3） | B．只有（1）（2）（4） |
| C．只有（2）（3）（5） | D．（1）（2）（3）（4）（5） |
相关试题
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
I can’t leave. She told me that I ______ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—— Do you mind my opening the window? It’s a bit hot in here.
—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
C．Yes, I do | D．Come on |
粤公网安备 44130202000953号