
1个回答
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d+6c+6b+22a
=10c+6c+6*30a+22a
=16c+180a+22a
=16*10b+202a
=160*30a+202a
=4800a+202a
=5002a
=5002*3.3
=16506.6
=10c+6c+6*30a+22a
=16c+180a+22a
=16*10b+202a
=160*30a+202a
=4800a+202a
=5002a
=5002*3.3
=16506.6
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