【简答题】
As shown in the figure, the full length of the statically determinate multi-span beam is subject to uniform distribution load q, and the span length is l. If the absolute value of the maximum positive and negative bending moments on the beam are the same (the bending moment is positive if the lower side is in tension.), the distance x between hinge B and support C is 1.__ l (the result remains 2 decimal places) .
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