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【单选题】
DNS域名解析过程一般是迭代查询的过程。如果在本地的DNS缓存中没有找到相关的记录，客户端就会向本地的DNS服务器发出查询请求。如果本地DNS解服务器中没有找到相关的记录，那么DNS服务器就将该查询转发给（ ）。A.
它的上一级DNS服务器
B.
根域名服务器
C.
权限域名服务器
D.
一级域名服务器
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皮皮学刷刷变学霸
举一反三
【单选题】对矩阵 A 的以下变换,哪个不是初等变换( ):
A.
A的某两行元素对换：
B.
A的某两列元素对换：
C.
用一个数k乘以A的某一行；
D.
A的某行元素的k倍对应加到另一行上；
【简答题】Most of the sandstorms that had swept China last year came from foreign land, a Chinese official in charge of desertification control said on Monday. And the invasions( 入侵 )could partly explain the fr...
【单选题】Despite the frequent disagreement between some of the band members, there needs to be a(n) ________ decision from all members of the band before anyone can be dismissed.
A.
unanimous
B.
unilateral
C.
underdeveloped
D.
subordinate
【单选题】Despite the frequent disagreement between some of the band members, there needs to be a(n)__________________decision from all members of the band before anyone can be dismissed.
A.
unanimous
B.
animus
C.
whole
D.
universe
【简答题】什么是传动轴的临界转速,增大临界转速的措施有哪些?
【简答题】________ 6 Memory is far more complex than floppy discs, despite the frequent comparisons between the two.
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