题目内容

智能家居设备的无线网络接入方式只能是Wifi或者Zigbee。

A. 正确
B. 错误

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You deploy a Windows Server 2008 VPN server behind a firewall. Remote users connect to the VPN by using portable computers taht run Windows Vista with the latest service pack. the firewall is configured to allow only secured Web communications. you need to enable remote users to connect as securely as possible. You must achieve this goal without opening any additional ports on the firewall. What should you do？（）

A. Create an IPsec tunnel
B. Create an SSTP VPN connection
Create a PPTP VPN connection
D. Create a L2TP VPN connectio

焦炭（）是焦化厂污染控制的指标之一，其含量偏大，推焦时烟尘量显著增加。

A. 挥发份
B. 灰分
C. 固定碳

脱氧器加热管数量为（）根。

A. 4
B. 6
C. 8
D. 10

材料运杂费是指材料自来源地运至工地仓库或指定堆放地点所发生的全部费用。()

A. 正确
B. 错误