阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
Global Student Challenge
Global Student Challenge is an online construction business game open to students across the world, studying a built environment course.
About Global Student Challenge
Started in 2014, Global Student Challenge is a yearly competition run by the Chartered Institute of Building that provides built environment students with a chance to apply their learning to a real-world situation of running their own virtual construction company.
Phase (阶段) One: Registration
Registration is perhaps the most important part of the competition! You'll need to register your team in order to use the MERIT software. Even more important, you'll need to decide who your teammates will be. Entry for the competition is open now and will close on 7 April 2021.
Phase Two: Pre-Competition
The first phase of competition begins on 15 March 2021. In this phase, your team will be able to use the game software and begin to make your plan to run the company.
Phase Three: Competition
This is when things start to get real.
On 14 April 2021 the first round of data will be shown to all teams and you'll have a week to make your decisions and hand them in for scoring.
After each round you'll get a score and you'll be graded against other teams based on this. We call this stage “The Early Years” as you begin to get your virtual construction company off the ground.
In total, you'll do this six times over six rounds of competition.
Phase Four: The GSC Final
The top six teams after The Early Years will be told to the public as our finalists on 25 May 2021. The finals week is scheduled to be held virtually in June 2021.
21. What do we know about Global Student Challenge?
A. It is held twice a year. B. It is an offline competition.
C. It is now entering its eighth year. D. It asks competitors to work in a real company.
22. When must signing up for the competition be done?
A. At the beginning of April. B. In the middle of March.
C. In the middle of April. D. At the end of May.
23. What will competitors do during Phase Three?
A. Make their own plans. B. Start to collect their data.
C. Compete with other teams. D. Learn to use the game software.
