Which statement(s) is/are TRUE concerning crane cargo operations? ()
A. Do not exceed rated load capacity of crane and container spreader or slings
B. During any cargo handling operation,the safety of personnel is paramount
Cargo handlers must be outfitted with adequate protection from personal injury
D. All the above
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Constant superheat is maintained at the evaporator outlet of a refrigeration coil by a()
A. solenoid valve
B. low pressure cutout switch
C. king valve
D. thermal expansion valve
根据投资回报的要求,用于企业价值评估的折现率中的无风险报酬率应以()为宜。
A. 行业销售利润率
B. 行业平均成本利润率
C. 企业债券利率
D. 国库券利率
更换冷却设备、弯头吹管时,要听从()指挥;不()不准打销子和卸下弹簧拉钩。
企业偿债能力主要反映企业偿付到期债务的能力,企业偿债能力的比率主要有().
A. 资产负债率
B. 速度比率
C. 存货周转率
D. 流动比率
E. 销售增长率