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用数学归纳法证明不等式“”时的过程中,由到时,不等式的左边 ( ) A.增加了一...

用数学归纳法证明不等式“说明: 6ec8aac122bd4f6e”时的过程中,由说明: 6ec8aac122bd4f6e说明: 6ec8aac122bd4f6e时,不等式的左边                                                                               (  )

A.增加了一项说明: 6ec8aac122bd4f6e

B.增加了两项说明: 6ec8aac122bd4f6e

C.增加了两项说明: 6ec8aac122bd4f6e,又减少了一项说明: 6ec8aac122bd4f6e

D.增加了一项说明: 6ec8aac122bd4f6e,又减少了一项说明: 6ec8aac122bd4f6e

 

C 【解析】略
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