Tập đoàn kinh tế là mô hình tồn tại dưới hình thức nào

Russell's study compared gpa of those students who volunteered for academic study skills training and those who did not elect to take the training. he found that those who had the training also had higher gpa. with which validity threat should russell be most concerned?

Jake and janelle loved to prepare gourmet meals for friends and family. they started a business of preparing theme-type dinners for friends who were having parties. to generate even more interest in the business, janelle created on her website. she posted pictures of events, and close-ups of the food they served. she encouraged patrons and others to post reviews, comments, and favorite recipes, and to share their own party ideas. her promotion became a dialogue between buyers of her service and the business. interactive promotion infomercials product placement broadcast

What is a sales lead? a. an employee on the customer service team who deals with existing customers b. a sales person who works on a residual commission structure c. an expert in maslow's hierarchy of needs d. a potential customer who has shown interest in the company's product