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【单选题】
关于 HDFS 数据块的描述,以下正确的是( )。A.
HDFS 寻址开销包括元数据定位开销和数据块定位开销。
B.
HDFS 2.0 默认一个数据块大小为 64MB 。
C.
HDFS 中一个文件被分成多个块，以块作为存储单位。
D.
HDFS 块大小比普通文件系统小，可以最小化寻址开销。
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举一反三
【单选题】I insisted that all the students to smoke at school .
A.
not to be allowed
B.
not allow
C.
were not allowed
D.
not should be allowed
【单选题】I insisted that all the students ______to smoke at school.
A.
not be allowed
B.
not allow
C.
were not allowed
D.
not should be allowed
【单选题】Last Christmas I worked at the jewelry counter of a local department store. Although it is supposed to be a season of goodwill, Christmas made ordinarily pleasant people pushy and demanding. Once, an ...
A.
Personal experience
B.
Observation
C.
Personal reading
D.
Class reading or lecture
【简答题】并发的酸碱平衡失调应是
【简答题】肺是如何调节酸碱平衡的?
【单选题】I insisted that we ______ overnight at the hotel, and finally all the group members agreed.
A.
stay
B.
stayed
C.
will stay
D.
have to stay
【简答题】试述机体调节酸碱平衡的机制。
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