第3题: [多项选择]关于网络型数字视频安防监控系统中所采用的网络交换机,以下说法正确的是()。 A. 一、二级交换机间须通过光缆连接 B. 同级交换机可进行级联和堆叠 C. 可采用桌面型网络交换机 D. 二级交换机应支持VLAN划分 E. 二级交换机每个端口带宽应≥1000M F. 交换机可集中分布或分散分布 参考答案:D, E, F
A. He will fail to succeed. B. He will be successful. C. He will lose enjoyment. D. He will be irrational. 参考答案:C 答案解析:原文中有“The individual representing his country cannot afford to think about enjoying himself”一句。
第36题: [单项选择]What is the full name of B.B.C A. British Broadcasting Cooperation B. British Broadcasting Company C. British Broadcasting Corporation D. British Broadway Cooperation 参考答案:A