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1·It is not coherent if it has faulty parallel constructions, pronouns with ambiguous reference, dangling or misplaced modifiers, confusing shifts in person and number, or in voice, tense, and mood.

如果有错误的并列结构，指代不明，修饰悬挂或错位，人和数字变动、语态、时态、语气混乱，这就是不连贯句。