①若f（1﹣x）=f（x）且0≤x≤ $\frac{1}{2}$ 时，f（x）= $\frac{1}{20}$ x（x﹣ $\frac{1}{2}$ ），则当 $\frac{1}{2}$ ＜x≤1时，f（x）= $\frac{1}{20}$ （1﹣x）（ $\frac{1}{2}$ ﹣x）；

②若对∀x∈0，1都有f（1﹣x）=﹣f（x），则y=f（x）至少有3个零点；

③对∀x∈0，1，|f（x）|≤ $\frac{1}{6}$ 恒成立；

④对∀x₁，x₂∈0，1，|f（x₁）﹣f（x₂）|≤ $\frac{1}{6}$ 恒成立．

其中正确的结论个数有（   ）

Food,  Drink &
Refreshment
Relax and unwind in our new state of the Loch Ness Eatery. Whether you are looking for a snack or a full meal we can provide almost anything to suit everyone. We will be ready for helping you at all times.
★ Fresh Tea. Coffee, Hot Chocolate etc.
★ Good choice of Home Baking and Cake
★ Home Made Soup and Sandwiches.
★ Sweets and Soft Drinks
★ Packed to aches for those who prefer a picnic.
★ Seating for over 150 visitors.
Tel:  +44(0)1456 450321
Web: www.lochness.com