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【多选题】
以下关于MapReduce编程模型的描述正确的有哪些？A.
MapReduce的编程模型包含Map和Reduce两个函数处理过程。
B.
对于map和reduce每个过程都由不同的计算机进行并行计算处理。
C.
Map的输出结果是一组 对，这是经过Map操作后所产生的中间结果。
D.
Reduce的工作是对相同key的value值进行归并处理。
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举一反三
【简答题】In despair at his failure, he ____ his own life.
【单选题】With all his money and friends _____, he was now in great despair (绝望). [ ]
A.
going
B.
gone
C.
be gone
D.
had gone
【单选题】国内某家电企业，利用自己在商标、技术、市场、资金等方面的优势，通过兼并收购其它家电企业来壮大自己，该企业采用的一体化增长方式属于()
A.
水平一体化
B.
前向一体化
C.
后向一体化
D.
同心多元化
【单选题】Why would the son always fall into despair when writing to his father?
A.
He was not quite sure about his father’s attitude toward him.
B.
He still remembered how he had run away from home.
C.
His exile experience left him feeling vey negative.
D.
He could well imagine how angry his father would be.
【单选题】What became of Temujin after his father's death?
A.
He was driven to despair.
B.
He was put in prison.
C.
He was reduced to begging for a living.
D.
He was forced to leave his own country.
【简答题】菌物典型的生活史包括( )和有性繁殖两大阶段。
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