问题描述：
SAT语法题：Because of its innovativeness and its effective presentation,Mary's science project received more judges' votes at the exhibit than （did Jim).短划线,括号里是错误的,要是改正的话是不是应该把did去掉?还有第一句话的连词and前后一致,那前后的its指代什么?求解!
问题解答：
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