还原bak文件，电脑系统必须安装（）。 ["Sqlserver","PowerBuilder","Office","VisualBasic"]
在基础模数尺寸之上，还要确定集装基础模数尺寸（即最小的集装尺寸）。ISO对物流标准化的重要模数尺寸方案如有（）。 ["1200×1000（mm）","1200×800（mm）","1100×1100（mm）","100×800（mm）"]
采煤工作面支架液压系统要保持完好，不得出现（）。 ["漏液","窜液","不自动泄液","回液"]
物流系统内信息包括物料流转信息、物流操作层信息，具体为运输信息（）。 ["储存信息","物流加工信息","配送信息","定价信息"]
You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN. The phonerings but， when you answer， the call is dropped. What may have caused this problem？（） ["The minimum data rate is not set to 11 Mbps.","An address resolution protocol is enabled.","Publicly Secure Packet forwarding is enabled.","The access point is set to the least congested channel."]
如何选择起重设备？
