IPv6是下一代IP协议。IPv6的基本报头包含()B,此外还可以包含多个扩展报头。基本报头中的()字段指明了一个特定的源站向一个特定目标站发送的分组序列,各个路由器要对该分组序列进行特殊的资源分配,以满足应用程序的特殊传输需求。一个数据流由()命名。在IPv6中,地址被扩充为128bit,并且为IPv4保留了一部分地址空间。按照IPv6的地址表示方法,以下地址中属于IPv4地址的是()。()是IPv6的测试床,实际上是一个基于IPv4的虚拟网络,用于研究和测试IPv6的标准、实现以及IPv4向IPv6的转变过程。
IPv6是下一代IP协议。IPv6的基本报头包含()B,此外还可以包含多个扩展报头。 The importance and focus of the
interview in the work of the print and broadcast journalist is reflected in
several books that have been written on the topic. Most of these books, as well
as several chapters, mainly in, but not limited to, journalism and broadcasting
handbooks and reporting texts, stress the "how to" aspects of journalistic
interviewing rather than the conceptual aspects of the interview, its context,
and implications. Much of the "how to" material is based on personal
experiences and general impressions. As we know, in journalism as in other
fields, much can be learned from the systematic study of professional practice.
Such study brings together evidence from which broad generalized principles can
be developed. There is, as has been suggested, a growing body of research literature in journalism and broadcastin A. a news article B. a journalistic interview C. a research report D. a preface [单项选择]与镍铬合金相比,铸造金-铂-钯合金的特点是()
A. 密度低 B. 铸造温度高 C. 弹性模量高 D. 硬度高 E. 生物相容性好 [单选题]配送电单位应将临时用电设施纳入正常电气运行巡回检查范围,每天不少于()次巡回检查,并建立检查记录和隐患问题处理通知单,确保临时供电设施完好。遇紧急情况,配送电单位有权紧急停电处理。
A.1 B.2 C.3 D.4 [单选题]绘图比例一般为()。根据电缆敷设现场的实际需要,地下管线密集处可取1:100,管线稀少地段可取1:1000.
A. 1:200 B.0.25 C.0.31944444444444 D.0.38888888888889 [单选题]B757飞机在压力加油完成后,加油总管内的燃油可通过两个总管放油活门放回到( )
A.左主油箱 B.右主油箱 C.中央油箱 D.加油车 [多选题]根据《紧急救护法》,搬动颅脑外伤时,应使伤员采取()()()()。
A.A.平卧位 B.B.保持气道通畅 C.C. 若有呕吐,应扶好头部和身体 D.D.使头部和身体同时侧转,防止呕吐物造成窒息。 [多选题]下面正确叙述浮选气泡大小对浮选效果影响的是( )。
A.气泡小,空气弥散越好,增加了气泡表面积及其与物粒接触的机会,对浮选有利 B.气泡过小,升浮速度很小,反而有害 C.浮选时气泡不能过大,以小为好,但不能过小,否则会降低回收率和精矿质量 D.气泡越大浮力越大,浮选效果就越好 E.捕收剂越多,气泡越大 我来回答: 提交
|