第23题: [单项选择]{{I}}Questions 18 - 21 are based on the following dialogue.{{/I}}What are the speakers talking about A. A chemistry assignment. B. A study that their chemistry professor did. C. A class that the woman is taking. D. A possible job. 参考答案:D 答案解析:[听力原文]18-21
M: Hi, Mary. Do you want to start writing a lab report after we finish this experiment
第27题: [单项选择]IEEE 802.11i所采用的加密算法为______。 A. DES B. 3DES C. IDEA D. AES 参考答案:D 答案解析:[分析] IEEE 802.11i规定使用802.1x认证和密钥管理方式,在数据加密方面,定义了TKIP(Temporal KeyIntegrity Protocol)、CCMP(Counter-Mo
第31题: [多项选择]关于银屑病关节损害与皮肤损害的关系,叙述正确的有()。 A. 皮肤损害都发生于关节损害之前 B. 约75%皮肤损害发生于关节损害之前 C. 约75%皮肤损害发生于关节损害之后 D. 约15%皮肤损害发生于关节损害之后 E. 约15%皮肤损害发生于关节损害之前 参考答案:B, D
第36题: [简答题]vtp pruning的purpose是什么? 参考答案:VTP pruning increases network available bandwidth by restricting flooded traffic to those trunk links that the traffic must use to reach the destination devices.