题目内容
测量前臂旋转时，肩和肘关节的位置是（ ）。
2021-10-14
A.肩屈90°、伸直肘
B.肩屈45°、屈肘45°
C.肩外展90°、屈肘90°
D.肩中立位、屈肘90°
E.肩中立位、伸直肘
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