单项选择题

Why is the reading system for the blind called the Braille

A．He was born blind.
B．He became blind as a result of an accident.
C．After taking some medicine, he became blind.
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单项选择题
A．They are going to see a film.B．They are going to have dinner together.C．They are going to enjoy a concert.
A．They are going to see a film.
B．They are going to have dinner together.
C．They are going to enjoy a concert.
单项选择题
A．He hved in the 170Os.B．He lived in the 1800s.C．He lived in the 190Os.
A．He hved in the 170Os.
B．He lived in the 1800s.
C．He lived in the 190Os.
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