不定项选择必须在测验或作业的截止日期之前完成学习任务。一旦错过截止日期再提交,不能参与计分。
单项选择题The S-T-P process is a three-step marketing model that helps identify a company’s most _______ type of customer and then develop strategies for marketing its product directly to that group.A.treasuredB.productiveC.valuableD.profitable