【简答题】Listed below are the top steel-producing regions for the year 2009. Express the amount produced by China as an index, using the United States as a base.
【简答题】Listed below are the top steel-producing regions for the year 2009. Express the amount produced by Japan as an index, using the United States as a base.
【单选题】A shoe retailer keeps track of all types of information about sales of newly released shoe styles. One newly released style was marketed to tall people. Listed below are the shoe sizes of 12 randomly ...