20 1 1 Liaoning college entrance examination mathematics multiple-choice questions 12? thank you

Is it a new curriculum standard? If yes, the problem of choosing 12 in liberal arts mathematics can be solved as follows:

The period of the function Y=F(x) is 2. When x belongs to-1 and 1, f (x) = the square of x.

That is, when the function y is X=- 1, Y= 1.

When X= 1, Y= 1.

And the function is a periodic function.

So when X=2, the function Y=0.

When X=3, Y= 1.

Y=0 when X=4.

By analogy, Y=0 when X= 10.

And the function Y= logx.

In the interval of (0, 1), the minimum decreasing value is X= 1.

Y=0

exist

(

, 10), and the maximum value is X= 10.

Y= 1

So the images of the two functions have 10 intersections.

Hope to adopt