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通过关注并研究提升转化率，可以促进工作效率的提升，这样的说法正确么？
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对于营销型企业来说，客户数据库是企业的生命，这样的说法正确么？
Thank you very much for meeting with me yesterday about our project. I really appreciate your help. And we’ll take your suggestions into consideration when we ____20___for the next year.It was____21____ to have someone like you who has had experience with similar projects.I appreciate your taking the time out of your busy schedule to ____22___ me.I’ll ____23____to send you a follow-up when this project is completed. Please let me know if I can ____24___ the favor and when.
建筑砂浆是由胶凝材料、细骨料和水按一定比例配制而成的建筑材料。
在配制砌筑砂浆时,选择水泥强度等级一般为砂浆强度等级的4 ∽5 倍。
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