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声调手语规则：按照“一声平、二声翘、三声打对号、四声往下撂”划空，手掌 后 推表示轻声。 The tone rules of sign language: according to the rule "the First, level tone; second, rising tone; third, falling-rising tone; fourth, falling tone", draw in the air, show palm, back, push to indicate a light sound.
答案：
正确
