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单项选择题
A．Because it was invented by the person called Braille.B．Because it was first used by the person called Braille.C．It is unknown.
A．Because it was invented by the person called Braille.
B．Because it was first used by the person called Braille.
C．It is unknown.
单项选择题
A．To drink some coffee.B．To drink tea with his friend.C．To buy some tea leaves.
A．To drink some coffee.
B．To drink tea with his friend.
C．To buy some tea leaves.
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