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【判断题】
设图G = (V, E)，其中V = {A,B,C,D}, E = {{A,B},{A,C},{A,D},{B,C},{C,D}}, 图G'={U,F}，其中U={A,B,C,D}, F = {{A,B}, {B,C}}，则G'是G的生成子图。A.
正确
B.
错误
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【简答题】Ethernet V2协议封装的以太网帧格式由()个字节的帧头、数据本身和()个字节的帧尾组成。帧长度最少为()个字节,最长为()个字节。少于或大于相应个字节的以太网帧是无效帧。
【简答题】Track4-3 Scientists and designers at Cornell University in the United States are working on fashion’s next big thing: “wearable technology.” These clothes do many different things, and some already ex...
【多选题】下列选项中,属于不计算建筑面积的范围是( )。
A.
房屋之间无上盖的架空通廊
B.
房屋的天面、挑台、天面上的花园、泳池
C.
独立烟囱、亭、塔、地下人防干、支线
D.
活动房屋、临时房屋、简易房屋
E.
楼梯间、电梯(观光梯)井、提物井、垃圾道、管道井等
【简答题】IEEE802.3标准以太网中,最小的帧长为 字节。
【多选题】下列选项中,属于不计算建筑面积的范围是( )。
A.
房屋之间天上盖的架空通廊
B.
房屋的天面、挑台、天面上的花园、泳池
C.
活动烟囱、亭、塔、地下人防干、支线
D.
活动房屋、临时房屋、简易房屋
E.
楼梯间、电梯(观光梯)井、提物井、垃圾道、管道井等
【简答题】Match the persons to their actions. 1. Why do people make __________ ( expenses / budgets )? 2. A budget keeps track of how much money people __________ ( spend / add ) in relation to how much they ea...
【简答题】D. Choose the correct words to complete the sentences 1. Why do people make __________ (expenses / budgets)? 2. A budget keeps track of how much money people __________ (spend / add) in relation to h...
【简答题】Nancy has taught a 1 ______of ages of children, for example, 3-year-olds and preschool children and fifth, fourth and first grade at the elementary level. What is stressful about her job is that child...
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