搜题，就来5TiKU.com题库【问题】 Ithe first paragraph, the author suggested ________.·paying a visit to some customers· finding out sources of information· advertising your products or services·carrying out various market researches
Ithe first paragraph, the author suggested ________.·paying a visit to some customers· finding out sources of information· advertising your products or services·carrying out various market researches
正确答案：单选题· improving your products or services·paying a visit to some customers
题目解析：本题出自佳木斯大学，佳木斯大学语言治疗学，由丰阳塔题库搜集整理。
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