单项选择题
(A)0.8~0.9m (B)0.8~1.0m (C)0.8~1.2m (D)0.8~1.3m
(A)行动 (B)动作 (C)行为 (D)作用
A.163mm B.440mm C.6000mm D.7500mm
(A)163mm (B)440mm (C)6000mm (D)7500mm
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