问题:
[单选题]
Aω≥[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2
B[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2≤ω≤[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2
C[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2≤ω≤[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2
Dω≤[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2
Aω≥[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2
B[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2≤ω≤[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2
C[(sinθ−μcosθ)g/(cosθ+μsinθ)r]1/2≤ω≤[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2
Dω≤[(sinθ+μcosθ)g/(cosθ−μsinθ)r]1/2
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