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class ExerciseBankChoice < ApplicationRecord
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belongs_to :exercise_bank_question
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has_many :exercise_bank_standard_answers
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scope :find_choice_custom, lambda {|k,v| where("#{k} = ?",v)} #根据传入的参数查找问题
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scope :left_choice_choose, lambda {|k,v| where("#{k} > ?",v)} #根据传入的参数查找问题
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end
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