CADAB

Title:

1. Visual illusion often occurs in real images.

___.

A. Match six to seven million structures called cones.

B. confuse rod cells and cone cells in the body.

C. it is interpreted as an inevitable situation in the brain.

D. The signal is emitted by about 120 million rods in the eye.

2. This kind of vision sensor can distinguish

The color is _ _.

A. Conical cells

B. color vision

C. pole

D. scope

3. The retina sends pulses to the brain.

A. In short wave

B. As a color picture

C. A ganglion cell

D. along the optic nerve.

4. Twenty-four still photos are made into a continuous moving one.

The picture is just because _ _.

A. The images we see are usually longer than they actually appear.

B.we look at an object by comparing it with its surroundings.

C. The eyes continuously capture millions of pieces of information.

D rod cells and cone cells send information 20 to 25 times per second.

The purpose of the author's writing this article is.

___.

A. It shows that we are sometimes deceived by our own eyes.

B. tell us the different functions of eye organs.

C. regret that our research on eyes is too slow.

D. marvel at the great work done by the retina.