单项选择题

求定积分; ( )

A.log(2^(1/2) + 1)/2 + 2^(1/2)/2
B.log(2^(1/2) + 1)/2 + 2^(1/2)/2 + 1/2
C.log(2^(1/2) + 1)/2 - 2^(1/2)/2 - 1/2
D.log(2^(1/2) + 1)/2 + 2^(1/2)/2 - 1/2
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