卸扣的许用载荷值近似计算公式为：（为销子直径：mm）（） ["4d2","7d2","10d2"]
什么是大气污染？
招标工程量清单的编制责任（）说法是正确的。 ["采用工程量清单计价，清单必须是招标文件的组成部分","工程量清单的准确性和完整性由招标人负责","工程量清单的准确性和完整性由投标人负责","投标人对工程量清单不负有核实的责任","投标人对清单的错误应进行修改和调整"]
You are the network administrator for All servers run Windows Server 2003. You are creating a backup schedule for the main file server. You need to create a schedule so that backup jobs are completed in the shortest amount of time possible. What should you do?（） [" Schedule a normal backup every Sunday. Schedule incremental backups every Monday through Saturday."," Schedule a normal backup every Sunday. Schedule differential backups every Monday through Saturday."," Schedule a copy backup every day."," Schedule a normal backup every day."]
关于新生儿暖箱护理不正确的是：（） ["评估胎龄、日龄、出生体重、生命体征","患儿赤裸放入暖箱","告知家属不可随意开启暖箱","每日清洁暖箱，更换蒸馏水","治疗护理应集中进行"]
按照电子商务的模式，电子商务网站又可以分为以下几种类型：
