相邻两档导线最低点问的水平距离称为（）档距。 ["允许","水平","垂直","代表"]
舒乐板的特点为（） ["A.质量轻 ","B.强度高 ","C.隔音 ","D.防水 ","E.造价高"]
核酸可分为脱氧核糖核酸（DNA）和（）（RNA）两大类。
Which Control Plane Policing （CoPP） statement is true？（） [" Traffic to be policed is identified using the control-plane global configuration command."," The control-plane global configuration command enters the Cisco Modular QoS CLI （MQC） mode."," The control-plane global configuration command enters the control-plane configuration mode. "," Traffic to be policed is identified using the control-plane interface configuration command."," The control-plane interface configuration command enters the Cisco Modular QoS CLI （MQC） mode."," The control-plane interface configuration command enters the control-plane configuration mode."]
清代《景德镇陶录》载：“坯房发给人工（工钱），其为地下印利、做坯等工，则皆四月内给值，十月杙满（补足），年终再给少许；其为画作上工，则按五月端节、七月半、十月半及年竣分给。”对此解读有误的是（）。 ["陶瓷业的分工较细","陶瓷业存在雇佣关系","工人领取计件工资","工钱发放因工种而异"]
船上的旅客看到岸边的树向正南方向移动，旅客是以船为参照物的，这时船朝（）方向行驶。
