[单项选择]The most important factor in Google's success is ______.
A. its unique mathematical recipe B. the popularity of its brand among users C. that it was the first search engine in the world D. its stock market flotation
第13题: [单项选择]以下不是全双工以太网技术特点的是( )。 A. 受CSMA/CD特性的影响 B. 网卡发送和接收信号同时进行 C. 端口之间电缆的长度仅受信号传输衰变限制 D. 不会发生碰撞现象 参考答案:A 答案解析:全双工以太网技术与传统的半双工以太网技术区别在于每个端口和交换 机背板之间都存在两条逻辑通路。这样每一个端口就可以同时接收和发送帧,不再受到CSMA/CD的约束,在端口发送帧时不会再发生帧的
第28题: [单项选择]What do we know from the conversation A. There will be a party. B. There will be a football match. C. The man will play tennis. 参考答案:B 答案解析:[听力原文] W: Will you hold a party tomorrow for your birthday M: I don’t think so. I’d like to p