听力原文：It's amazing what you can see when you don't look. Astronomers often practice a t

echnique known as averted vision to see very faint things. By looking to the side rather than straight on, they avoid using receptors in the eye's center, which are more sensitive to dim light. So canny stargazers try to see the wonders of the cosmos out of the corners of their eyes.

Which of the following statements is NOT true according to the passage？

A．The term "averted vision" refers to the act of looking out of the comers of one's eyes.

B．If you want to see very faint things, you should better look sideways rather than straight on.

C．The receptors located in the eye's center are less sensitive to dim light.

D．To "look" is to see something straight ahead.