[问答题] 粗大误差产生的原因是什么？

用一卡通通过专业版网上支付时输入的是什么密码？ 下列物质或结构中，具有特异性识别功能的有（） ["","","",""] The Rules state that vessels may depart from the Rules when（）. ["there are other vessels in the vicinity","operating in a traffic separation scheme","engaged in a situation involving more than two vessels","necessary to avoid immediate danger"] 什么是随机误差？系统误差？粗大误差？ 在Windows 95/98中不能激活开始菜单是（）。 ["用鼠标单“开始”按钮","按下Alt+Esc","按下Ctrl+Esc","按下Windows标键"] 粗大误差产生的原因是什么？