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单项选择题
小心轻放（）
A. HANDLE WITH CARE
B. CAUTION AGAINST WET
C. KEEP UPRIGHT
D. NO DUMPING
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单项选择题
安全负荷量（）
A. the load
B. safe working load
C. safe working
D. safe loading work
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单项选择题
低速控制（）
A. low-speed control
B. inching control
C. high-speed control
D. slow-speed control
