Questions 22 to 25 are based on the conversation you have just heard.

A．Buy a high-quality laptop.
B．Have a regular timetable.
C．Separate the keyboard and the screen.
D．Substitute the screen with a radiation-proof one.

A．Social sciences, business and management, and humanities.
B．Social sciences, humanities, and architecture.
C．Business and management, humanities, and architecture.
D．Business and management, social sciences, and humanities.