低压照明线路，对电压要求较高，所以一般按（）选择截面，用机械强度和发热条件进行校验。 ["发热条件","电压换失","机械强度","电能损失"]
原杂基
企业到期的商业承兑汇票无法收回，则需将应收票据本息一起转作（）。 ["应收账款","坏账损失","财务费用","其他应收款"]
What is the most common mode for a firewall？（） [" routed mode"," context mode"," bridged mode"," transparent mode"," full security mode"]
如何校正酸度计？
什么是起重机的起升高度？
