A:绿原酸既可以催化加氢,又可以使酸性KMnO4溶液褪色
B:绿原酸的官能团中有羧基
C:1mol绿原酸与足量NaOH溶液反应,最多消耗2mol NaOH
D:绿原酸可以与FeCl3溶液发生显色反应
如图,用12块相同的小长方形瓷砖拼成一个大的长方形,则每个小长方形瓷砖的面积是( )
Hello,friends! My name is Jack.I am a Chinese boy.My favourite food is chicken.I like beef noodles,too.I don't like fish but egg is OK.Potatoes are my favourite vegetable.My favourite fruit is bananas.They are so sweet.