化合物C8H10的苯环上的氢原子被氯原子取代后，一氯代物有3种同分异构体，二氯代物有4种同分异构体。它可能是
| A．邻－二甲苯 | B．对－二甲苯 | C．间－二甲苯 | D．乙苯 |
相关试题
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 |
It’s high time you had your hair cut ; it’s getting _______ . 
| A．too much long | B．much too long |
C．long too much | D．too long much |
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