Fujian Zhangzhou Putonghua Test has 30 oral questions, isn't it a choice? Does every article need to be prepared?

I come from Zhangzhou, but I study in Fuzhou. I took the exam in Fuzhou. I took the exam in Fuzhou before, but now it's a computer exam. There are also 30 topics over there. There will be two questions for you to choose at will during the exam. If there is no difference, it should be the same. All 30 articles should be prepared. . . Because you didn't know he would give you those two questions. . . .