Based on China’s public transportation policies, holders of student ID cards (准考证) are usually entitled to buy a discounted ticket for trains and buses. However, whether they can purchase a reduced-fare ticket depends on the specific transportation company or region.

Typically, students in mainland China who hold valid student IDs can enjoy preferential treatment when taking public transportation. They may be able to get a discount of around 20-30% off the original fare, depending on the mode of transport and location.

So, in this case, it is likely that someone with a准考证 could purchase aStudent ticket (). But for confirmation, I recommend checking with the specific transportation company or at the ticketing counter to confirm their student discount policy.