在三角形ABC中，AB=2，BC=5，则AC的取值范围是______．
根据三角形的三边关系，得
5-2＜AC＜5+2．
即AC的取值范围是3＜AC＜7．
Fill in the blanks. 用所给单词的适当形式填空。
1. This department store (have) shoes, clothes, toys, books and (bicycle).
2. Let's go to the movie theatre to (watch) a movie.
3. The weather is (wind) and (cloud).
4. Tom (go) to the city.
经营指标分析的内容包括哪些？
