Answer:
True.
If Loneland were to allow free trade, it would be able to import beef from other countries at a cheaper rate (2 pounds of cheese for 2 pounds of beef), and export its own cheese to other countries at a higher rate (3 pounds of cheese for 2 pounds of beef). In other words, Loneland would have a comparative advantage in producing cheese, and would benefit from specializing in cheese production and exporting it in exchange for other goods.