一道sat数学真题,
ifanumberischosenatrandomfromtheset{-12,-6,0,6,12}.whatistheprobabilitythat
itisamemberofthesolutionsetofboth2x-3-6?
(A)0(B)1/5(C)2/5(D)3/5(E)4/5
c是对的,
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