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设函数的定义域为R+,若对于给定的正数K,定义函数,则当函数时,定积分的值为 (...

设函数6ec8aac122bd4f6e的定义域为R+,若对于给定的正数K,定义函数6ec8aac122bd4f6e,则当函数6ec8aac122bd4f6e时,定积分6ec8aac122bd4f6e的值为

                                                                                                                              (    )

       A.2ln2+2                B.2ln2-1                C.2ln2                    D.2ln2+1

 

D 【解析】
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