\textbf{113.} The curve $y = \sqrt{4-x}$ is translated $k$ units in the horizontal direction and $k-2$ units in the vertical direction such that the new curve intersects its own inverse at a point with width 1. Then the resulting curve is shifted 1 unit in the downward direction. The length of the intersection point of the curve with the $x$-axis is:
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(1) $-4$ \hfill (2) $-3$ \hfill (3) $1$ \hfill (4) $2$
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