单项选择题
A.C7 B.C8 C.T1 D.C2
A.L2 B.L3 C.L4 D.L5
A.C4 B.C5 C.C6 D.C7
A.上肢麻痹轻,下肢麻痹重B.上肢麻痹重,下肢麻痹轻C.左边麻痹轻,右边麻痹重D.左边麻痹重,右边麻痹轻
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