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In the rectangular coordinates£¬abscissa and ordinate of the intersection point of the lines y=x-k and y=kx+2 are integers for imteger k£¬then the number of the possible values of k is
£¨Ó¢ººÐ¡´Êµä£ºabscissaºá×ø±ê£»ordinate×Ý×ø±ê£»intersectionpoint½»µã£»integerÕûÊý£©


  1. A.
    4
  2. B.
    5
  3. C.
    6
  4. D.
    7
A
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x-k=kx+2£¬
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k=1+£¬
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