A . 低速搅拌60s,停30s,高速搅拌150s,停机B . 高速搅拌60s,停30s,低速搅拌150s,停机C . 高速搅拌120s,停15s,低速搅拌120s,停机D . 低速搅拌120s,停15s,高速搅拌120s,停机
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