绿原酸是咖啡的热水提取液成分之一，结构简式如下图，关于绿原酸判断正确的是（ ）
| A．分子中所有的碳原子均可能在同一平面内 |
| B．1 mol绿原酸与足量溴水反应，最多消耗2.5 mol Br2 |
| C．1 mol绿原酸与足量NaOH溶液反应，最多消耗4 mol NaOH |
| D．绿原酸水解产物均可以与FeCl3溶液发生显色反应 |
相关试题
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 |
They use computers to keep the traffic _______ smoothly.
| A．being run | B．run | C．to run | D．running |
If you leave the club, you will not be_____back in .
| A．received | B．admitted | C．turned | D．moved |
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