【简答题】Every day, about one-quarter of American s eat at fast-food restaurants. Cheap, tasty, and convenient, fast food is rich in fat and calories, and it’s low in fiber and nutrients. Thanks in large ...
【单选题】More than 50,000 electronics retailers and distributors are expected at the McCormick Convention Center in Chicago starting next Saturday. Some 1,300 manufacturers from more than 35 countries will exh...