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DNS服务器 在Linux系统下配置DNS服务器,IP地址为192.168.137.11,域名为dns.louting.com。要求正向解析。 www.louting.com 192.168.137.42 dns.louting.com 192.168.137.11 当DNS不能解析时,则请求219.216.129.5服务器解析。 设置客户端DNS服务器地址为192.168.137.11并测试。 1.安装DNS服务器 2.启动DNS服务器 3.配置主配置文件,定义正向区域louting.com,解析文件名为louting.zone 4.编辑正向解析文件louting.zone,添加两条映射关系 www.louting.com 192.168.137.42 dns.louting.com 192.168.137.11 5.使用什么命令测试DNS服务器
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【单选题】The disability insurance obtained by the employee benefits plan is ______.
A.
not enough for a decent living
B.
quite enough for a decent living
C.
better than the salary by working regularly
D.
as equal as your original weekly salary
【单选题】囊肿的声像图特征是()。
A.
边界回声不定
B.
外形不定
C.
内部无回声
D.
后方回声衰减
E.
侧缘声影不定
【简答题】阅读理解。 English Names Most English people have three names: a first name, a middle name and the family name. Their family name comes last. For example, my full name is Jim Alan Green. Green is my family...
【单选题】下列哪项不是黄体囊肿的声像图特征()。
A.
黄体形成过程中,黄体血肿液化所致,直径一般为3.0cm左右
B.
妊娠黄体囊肿产后才消失
C.
较大的黄体囊肿可自发破裂,发生急腹症
D.
黄体囊肿破裂声像图表现,酷似宫外孕破裂表现
【单选题】This is the______to an improvement of their living conditions.
A.
key
B.
decision
C.
essence
D.
alternative
【单选题】My English name is Mary. Each of the students in our class     given an English name. A.wereB.wasC.h
A.
My English name is Mary. Each of the students in our class ____ given an English name. A.were
B.
was
C.
has
D.
have
【单选题】肾囊肿的声像图特征是
A.
边界回声不定
B.
外形不定
C.
内部呈无回声
D.
后方回声衰减
E.
侧方声影不定
【单选题】Which of the following correctly describes the English phoneme /t?/?
A.
A voiceless alveolar fricative.
B.
A voiceless post-alveolar affricate.
C.
A voiced palatal affricate.
D.
A voiced alveolar fricative.
【单选题】______with the developed areas, peoples living standard of this province is not high at all.
A.
Compare
B.
While comparing
C.
When compared
D.
Comparing
【单选题】在原子光谱仪中,能够将光信号转变为电信号的装置是( )
A.
光电倍增管
B.
狭缝
C.
光栅
D.
放大器
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