Directions: Fill in the blank in the following sentence with an exact word from the text.In an information economy, many people have the ability to produce a useful () such as a new MP3 player.
正确答案:product
Directions: Fill in the blank in the following sentence with an exact word from the text.In an information economy, many people have the ability to produce a useful () such as a new MP3 player.
正确答案:product