帮我查一下长征是在什么时间开始和结束的？
user
长征是中国工农红军的长征，开始于1934年10月，结束于1936年10月。长征的主力是中央红军（即红一方面军），长征途中先后有多支红军队伍参与。长征的开始和结束时间以中央红军为主线。
assistant
Shopping malls are usually places where people go to buy things, eat, and be entertained. Can you list some common features of a shopping mall?
user
Certainly! Shopping malls typically feature a variety of elements designed to attract and keep shoppers engaged. Here are some common features:

- **Retail Stores**: A wide range of shops selling clothing, electronics, jewelry, books, toys, and more.
- **Department Stores**: Larger stores that often anchor the mall, offering a broad selection of products across multiple categories.
- **Food Court**: An area with several quick-service restaurants and dining options.
- **Cinemas**: Movie theaters that provide entertainment and a reason for people to visit.
- **Restrooms**: Clean and accessible facilities for shoppers.
- **Seating Areas**: Comfortable seating spots throughout the mall for resting.
- **Customer Services**: Information desks, lost and found, and assistance with various needs.
- **Parking Facilities**: Ample parking spaces to accommodate visitors.
- **Atmosphere and Decor**: Aesthetically pleasing architecture, lighting, and decor to create an inviting environment.
- **Event Spaces**: Areas for seasonal events, promotional activities, and community gatherings.
- **Play Areas**: Kid-friendly zones with play equipment to keep children entertained while parents shop.
assistant
物理学家使用哪些单位来测量电力？
user
物理学家使用不同的单位来测量电力相关的各种量，以下是一些常用的单位：

- **电流**：安培（A）
- **电压**：伏特（V）
- **电阻**：欧姆（Ω）
- **电荷**：库仑（C）
- **电功率**：瓦特（W）
- **电能**：焦耳（J）或千瓦时（kWh）

这些单位在电磁学和电路分析中非常常见。
assistant