单项选择题

A．To move the muscles.
B．To carry different messages.
C．To protect the nerves.
D．To control nerve cells.
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单项选择题
A．Apologize to Donna.B．Confront Donna directly.C．Forgive Donna’s behavior.D．Sent Donna a letter.
A．Apologize to Donna.
B．Confront Donna directly.
C．Forgive Donna’s behavior.
D．Sent Donna a letter.
填空题
H
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