16. As shown in the figure, circle C is tangent to the x-axis at point $T ( 1,0 )$, and intersects the positive y-axis at two points $\mathrm { A } , \mathrm { B }$ (B is above A), with $| A B | = 2$.\\
(1) The standard equation of circle C is $\_\_\_\_$.\\
(2) The x-intercept of the tangent line to circle C at point B is $\_\_\_\_$.\\
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