科学家艾哈迈德·泽维尔使“运用激光技术观察化学反应时分子中原子的运动”成可能，在他的研究中证实了光可诱发下列变化：
这一事实可用于解释人眼的夜视功能，有关X、Y的叙述不正确的是( )
| A．X和Y为同一种物质 |
| B．X和Y与氢气加成后生成同一种物质 |
| C．X和Y都可以发生加聚反应 |
| D．X和Y物理性质有差异 |
相关试题
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 |
My friend showed me round the town, ______ was very kind of him. 
| A．which | B．that | C．where | D．it |
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