请阅读第题中的个人情况说明，然后从A—F六个选项中选出符合要求的最佳选项，并在题号前填写相应的字母，选项中其中有一项为多余。
____Oh，we don’t have strawberries at home．Let’s go and buy some．
____Sally’s blue T-shirt is too small，she needs a big one．
____Alan can’t find his red pen．Can you help him?
____Mrs．Green wants to eat carrots for lunch，but there are no carrots at home．
____David needs lots of money for his school things．
A | Help Wanted We need help for our store．You can get twenty dollars a day．
| B | Fresh Store
All the fruit is on sale．Come and see for yourself．
|
C | Hand Store
Today eggs，carrots，tomatoes are on sale．Please come to our store．
| D | sports Store Do you like sports? Today soccer balls，basketballs，volleyballs and other sports things are on sale． |
E | zig zag store
In our store，we have lots of school things．You can call US at 887—9870
| F | Apple Store
Come and have a look at Apple’s great Sale．Hmm，you can find clothes that you like here．
|
是定义在
上且以3为周期的奇函数，当
时，
，则函数
上的零点个数是（ ）
