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【简答题】
She was educated at Beijing University , _______ she went on to have her advanced study abroad. A. after that B. from that C. from which D. after which
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反馈参考答案：
举一反三
【单选题】Click the Exhibit button. Based on the exhibit, client PC 192.168.10.10 cannot ping 1.1.1.2. Which is a potential cause for this problem?（）
A.
The untrust zone does not have a management policy configured.
B.
The trust zone does not have ping enabled as host-inbound-traffic service.
C.
The security policy from the trust zone to the untrust zone does not permit ping.
D.
No security policy exists for the ICMP reply packet from the untrust zone to the trust zone.
【单选题】通信生产机房楼内无自然采光楼梯间、封闭楼梯间、防烟楼梯间及其前室的顶棚、墙面及地面均应采用不燃装修材料;水平疏散通道和安全出口的门厅、顶棚应采用()
A.
可燃材料
B.
不燃材料
C.
易燃材料
D.
钢筋混凝土
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