whichone與whichones有什麼區別

whichone的意思是哪一個哪個哪輛。例如Which one do you like best? 你最喜歡哪一個Show me which one you like and I'll buy it for you. 

which ones的意思是哪幾個。例如：Point out to me which ones you like best? 指給我看，你最喜歡哪幾個There are many books on the floor. which ones are yours.