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题目来源1 : 绝密机经模考三
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A restaurant made 200 pizzas, some of which has no toppings, while the others had at least one of three toppings-mushrooms, onions, and peppers- -as summarized in the table above. No pizza had all three toppings. How many of the pizzas had no toppings?
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以上解析由 考满分老师提供。
