正确答案: A

扩大了品牌效应

题目：日前，天津板栗被国家质检总局批准为国家地理标志保护产品，成为受法律保护的原产地产品。以蓟县为主产区的天津板栗同静海独流老醋、蓟县盘山磨盘柿、汉沽茶淀玫瑰香葡萄、宁河七里海蟹等土特产一起，有了品质和声誉的“身份证”。这使上述土特产

解析：A

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学习资料的答案和解析：

[单选题]She brought with her three friends, none of ______I had ever met before.

whom D． these

[单选题]What can we infer about the newspaper editors?

They stop doing business with advertisers.