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菱形OABC在平面直角坐标系中的位置如图所示.∠AOC=45°,OC=,则点B的...
菱形OABC在平面直角坐标系中的位置如图所示.∠AOC=45°,OC=
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,则点B的坐标为( )
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A.(
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,1)
B.(1,
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)
C.(
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+1,1)
D.(1,
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+1)
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