第2题: [单项选择]What can be concluded about Janet A. She has come to the party. B. She is hosting the party. C. She hasn’’t turned up. D. She is planning a party. 参考答案:C 答案解析:W: I can’’t imagine what happened to Janet.
M: Neither can I, but I’’m sure she planned to come to
第3题: [多项选择]失眠的形成与下列哪项有关 A. 心虚胆怯 B. 表证入里 C. 肝郁 D. 脾肾亏虚 E. 痰热内扰 参考答案:A,C,D,E
第31题: [单项选择]交换式局域网增加带宽的方法是在交换机多个端口之间建立( )。 A. 点一点连接 B. 并发连接 C. 物理连接 D. 数据连接 参考答案:B 答案解析:[分析] 交换式局域网通过局域网交换机,可以在它的多个端口之间建立多个并发连接来提高局域网带宽。将交换式局域网的概念应用于高速局域网的设计中,大大地提高了网络性能。