A. α1+α2，α2+α3，α3-α1
B. α1+α2，α2+α3，α1+2α2+α3
C. α1+2α2，2α2+3α3，3α3+α1
D. α1+α2+α3，2α1-3α2+22α3，3α1+5α2-5α3
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