A. prevents anyone from working the cargo at unauthorized times B. is a safety measure in case one of the outboard guys parts C. is a longshoreman who watches for accidents D. is the same as a blacksmith
A. 正确 B. 错误
A. 胸肋胀痛 B. 抑郁易怒 C. 脉弦 D. 舌苔薄白 E. 失眠多梦