题目内容：

下面文章中有3处需要添加小标题。请从以下选项中选出符合各段意思的小标题，并在答题卡上将相应选项的标号涂黑。选项中有一项是多余选项。

Laptop computers give us easy access to our e-mails, the Internet, or anything else you would use a computer for. laptops have many different sizes and features so you have to focus on what is important to you as a user. Here are some suggestions on how to select a laptop or a notebook computer:

1.

You are looking for a laptop that suits your needs well, so if you are frequently traveling or are going to be transporting your laptop to different locations frequently, you must want to get a laptop that is light and not one that is big and bulky.

2.

If you are performing more simple applications such as surfing the Internet and creating Word documents, you don't need a computer with the most processing power. These lower processing power computers are often referred to as net-books.

Consider how you will be connecting to the Internet

If you'll be using an Ethernet cable to connect to a home network, you will want a notebook with a wired Ethernet port. If you plan on connecting to the Internet from multiple places such as cafes or libraries, choose a computer that is Wi-Fi compatible.

3.

If you will be moving around frequently and need to use your computer in places where you can't plug it in, be sure to get a laptop with a longer battery life.

Consider the security features

Some notebooks come with additional security features. I's possible to require an extra password to gain access to the operating system.

If you will be multi-tasking and using multiple computer programs at the same time be sure to get a notebook with more RAMs and a faster processor than normal.

A.Consider the size of the notebook computer

B.Consider how you plan on using the laptop

C.Consider the battery life

D.Consider upgrades and limitation