val words = Array("one", "two", "two", "three", "three", "three") val wordPairsRDD = sc.parallelize(words).map(word => (word, 1))wordCountsWithReduce = wordPairsRD
D:reduceByKey(_+_)上述语句的执行结果wordCountsWithReduce中包含的元素是
选项：

A:(“one”,1),(“two”,2),(“three”,3)
B:(“one”,1),(“two”,2),(“three”,1)
C:(“one”,3),(“two”,2),(“three”,1)
D:(“one”,1),(“two”,2),(“three”,2)