单选题:如果执行下面的程序流程图,输人x=-3,h=0.5,那么输出的各个数的和等于(  )。

题目内容:
如果执行下面的程序流程图,输人x=-3,h=0.5,那么输出的各个数的和等于(  )。
A.-3
B.-3.5
C.-4
D.-4.5

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