Additions of many addends refer to the process of adding together multiple numbers to find the total sum. This can involve adding two or more numbers together in a single operation. The result of adding many addends is the total sum or the combined value of all the numbers added together. **

Additions of many summands refer to the process of adding together a large number of individual values or terms. This can be done by adding each summand one by one to obtain a final total. The result of adding many summands together is known as the sum or total of the values. This process is commonly used in mathematics, finance, and other fields to calculate cumulative totals or overall values. **

Online commerce refers to the buying and selling of goods and services over the internet, while retail commerce refers to the traditional brick-and-mortar stores where customers can physically visit and make purchases. Online commerce offers the convenience of shopping from anywhere at any time, while retail commerce provides the opportunity for customers to see, touch, and try products before making a purchase. Online commerce often involves lower overhead costs and can reach a wider audience, while retail commerce provides a more personalized and immediate shopping experience. **

The following additions in Japanese are used to show respect and politeness in speech. For example, "san" is added to a person's name to show respect, "sama" is a more formal and respectful version of "san," and "sensei" is added to a teacher's name to show respect for their knowledge and expertise. These additions are important in Japanese culture to maintain proper etiquette and show consideration for others. **

The purpose of the guest additions in VirtualBox is to enhance the performance and usability of the virtual machine. It provides additional features such as better video support, mouse integration, shared folders, and improved overall performance. The guest additions also allow for seamless integration between the host and guest operating systems, making it easier to use and manage the virtual machine. Overall, the guest additions improve the user experience and functionality of the virtual machine. **

To install VirtualBox Guest Additions in Deepin, first start the Deepin virtual machine and log in. Then, click on the "Devices" menu in the VirtualBox window and select "Insert Guest Additions CD image." This will mount the Guest Additions CD image in the virtual machine. Open a terminal in Deepin and navigate to the mounted CD image, then run the command "sudo sh ./VBoxLinuxAdditions.run" to install the Guest Additions. Finally, restart the virtual machine to apply the changes. **

An online shop for e-commerce is a website or platform where businesses and individuals can sell their products or services to customers over the internet. It provides a virtual storefront where customers can browse, select, and purchase items, and often includes features such as secure payment processing, order tracking, and customer support. Online shops for e-commerce can range from small, independent businesses to large, multinational retailers, and they have become increasingly popular due to the convenience and accessibility they offer to both sellers and buyers. **

A retail merchant in e-commerce is responsible for a variety of tasks to ensure the success of their online store. These tasks include sourcing and purchasing products to sell, managing inventory levels, setting prices, creating product listings, and optimizing product descriptions and images to attract customers. Additionally, they are responsible for marketing their store through various channels, providing customer service, processing orders, and managing shipping and returns. Overall, a retail merchant in e-commerce must oversee all aspects of their online store to drive sales and provide a positive customer experience. **