Item 2

　Gaming laptops aren't new, but they usually lack power compared to their beefier desktop counterparts. Nvidia's latest announcement changes that, and brings the desktop-class power found in its RTX line of graphics cards to laptops. More than 40 laptop models will turn up by the end of the month with RTX graphics cards inside, which can produce more realistic graphics and boost performance for the most gamers. 　 Item 3

　If sleeping is harder than it should be, the Dreem band might be able to help you figure out what you're doing wrong. The Dreem band is a fabric-covered headband that wraps around your head and uses a combination of sensors like the ones in your Apple Watch to detect various biometrics like your heart rate and respiration activity. It also uses bone conduction to communicate audio cues to you privately. Item 4

Samsung's shown off its Micro LED technology in the past, using it to build The Wall, a 146-inch TV. The company's now showing off a smaller Micro LED TV. Using Samsung's Micro LED panels, you can create a variety of display sizes supporting different aspect ratios, going from an ultra-wide 21:9 screen to a perfectly square 1:1 display without losing image quality. 　　　 1. If one likes doing things by himself, which of the items suits him best?

A. Item 1. B. Item 2. C. Item 3. D. Item 4.

2. Which of the following technologies appeared for the first time in the show?