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【多选题】
以下关于HDFS体系结构的描述正确的有哪几项?
A.
HDFS采用主从结构模型。
B.
一个HDFS集群是由一个NameNode和若干个DataNode组成的。
C.
NameNode作为主结点，用来管理文件系统的元数据（命名空间和访问操作等信息）。
D.
DataNode作为从结点，用来管理存储的数据。
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参考答案：
举一反三
【单选题】多级放大电路中,前级放大电路的输出电阻就是后级放大电路的( )。
A.
负载电阻
B.
输出电阻
C.
信号源内阻
D.
偏置电阻
查看完整题目与答案
【简答题】My name is Jim. My favorite day is October l8th, because it's my birthday. I am very happy on that day. I eat eggs for breakfast. Then my friends come to my home and play with me. We sing and dance. S...
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【简答题】Dear Tom, I am very happy that you can attend my birthday party at my home It's easy to find my home according to the map I drew 1 you. Drive past the Science Museum. Then go 2 the traffic lights to t...
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【单选题】一角接触球轴承内径为85mm,公称接触角为15°,宽度系列为O,直径系列为 3 ,公差等级为 6 级,游隙为 0 组,其代号为 。
A.
7317B/P6
B.
7317C/P6
C.
7317AC/P6
D.
7385C/P6
查看完整题目与答案
【单选题】Budgeted information relating to two departments in a company for the next period is as follows. Production Direct Direct Direct Machine Department overhead mate...
A.
50% of direct material cost
B.
18% of direct labour cost
C.
$0.72 per direct labour hour
D.
$60 per machine hour
查看完整题目与答案
【单选题】I am very happy to declare that this year's sales target ahead of time.
A.
achieved
B.
has achieved
C.
has been achieved
D.
had been achieved
查看完整题目与答案
【简答题】阅读理解 Dear Wat, I was so glad to get your mail. I am very happy that you can attend my birthday party at my home. It's easy to find my home according to the map I drew for you. Drive past the Science M...
查看完整题目与答案
【单选题】请对自己本周的表现打分
A.
不及格
B.
中等
C.
良好
D.
优秀
查看完整题目与答案
【单选题】Великая Отечественная война продолжалась ______.
A.
с 1941 по 1945
B.
с 1812 по 1815
C.
с 942 по 1945
D.
с 1813 по 1816
查看完整题目与答案
【单选题】CIRCUMVENTION:
A.
direct speech
B.
requirement
C.
direct meeting
D.
without concentration
E.
chief method
查看完整题目与答案
相关题目：
【单选题】多级放大电路中,前级放大电路的输出电阻就是后级放大电路的( )。
A.
负载电阻
B.
输出电阻
C.
信号源内阻
D.
偏置电阻
查看完整题目与答案
【简答题】My name is Jim. My favorite day is October l8th, because it's my birthday. I am very happy on that day. I eat eggs for breakfast. Then my friends come to my home and play with me. We sing and dance. S...
查看完整题目与答案
【简答题】Dear Tom, I am very happy that you can attend my birthday party at my home It's easy to find my home according to the map I drew 1 you. Drive past the Science Museum. Then go 2 the traffic lights to t...
查看完整题目与答案
【单选题】一角接触球轴承内径为85mm,公称接触角为15°,宽度系列为O,直径系列为 3 ,公差等级为 6 级,游隙为 0 组,其代号为 。
A.
7317B/P6
B.
7317C/P6
C.
7317AC/P6
D.
7385C/P6
查看完整题目与答案
【单选题】Budgeted information relating to two departments in a company for the next period is as follows. Production Direct Direct Direct Machine Department overhead mate...
A.
50% of direct material cost
B.
18% of direct labour cost
C.
$0.72 per direct labour hour
D.
$60 per machine hour
查看完整题目与答案
【单选题】I am very happy to declare that this year's sales target ahead of time.
A.
achieved
B.
has achieved
C.
has been achieved
D.
had been achieved
查看完整题目与答案
【简答题】阅读理解 Dear Wat, I was so glad to get your mail. I am very happy that you can attend my birthday party at my home. It's easy to find my home according to the map I drew for you. Drive past the Science M...
查看完整题目与答案
【单选题】请对自己本周的表现打分
A.
不及格
B.
中等
C.
良好
D.
优秀
查看完整题目与答案
【单选题】Великая Отечественная война продолжалась ______.
A.
с 1941 по 1945
B.
с 1812 по 1815
C.
с 942 по 1945
D.
с 1813 по 1816
查看完整题目与答案
【单选题】CIRCUMVENTION:
A.
direct speech
B.
requirement
C.
direct meeting
D.
without concentration
E.
chief method
查看完整题目与答案
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