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（本小题满分12分） 如图，在平面直角坐标系 x O y 中，平行于 x 轴且过点A(3 ，2)的入射光线 l 1 被直线 l ：y= x 反射．反射光线 l 2 交 y 轴于B点，圆C过点A且与 l 1 , l 2 都相切. (1)求 l 2 所在直线的方程和圆C的方程； (2)设 分别是直线 l 和圆C上的动点，求 的最小值及此时点 的坐标．
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A.
there are many disadvantages of living in cities
B.
people's preference for living in cities is wrong
C.
the living conditions of cities are worse than those of countries
D.
measures should be taken to improve the living conditions in cities
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A.
There are many things a homeowner can do to save energy and money.
B.
Hiring an energy assessor will save energy and money.
C.
Homeowners don't know what they can do to save energy and money.
D.
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While there are many problems with the court system, there are available suggestions for improvement.
B.
The legislature needs to formulate fewer laws so that judiciary can catch up on its older cases.
C.
Nobody seems to care enough to attempt to find methods for making the judicial system more efficient.
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A.
advised
B.
instructed
C.
informed
D.
taught
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