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A.(-1,1,-1) B.(-i,j,-k) C.(1,-1,-1) D.不确定
A.(-1,1,-1) B.(-i,j,-k)
C.(1,-1,-1) D.不确定
A. (-1,1,-1)
B. (-i, j,-k)
C. (1,-1,-1)
D.不确定
A.(-1,1,-1)
B.(-i,j,-k)
C.(1,-1,-1)