When answering this question, you should consider the difficulty level of the national test, the competition among candidates, and the preparation required. You can discuss factors such as the high standards, the large number of participants, and the pressure involved, which often make it challenging for most people to succeed. You may also mention that success depends on individual effort, access to resources, and sometimes even luck. Providing examples or statistics can help illustrate your points.

回答这个问题时，你应该考虑国家考试的难度、考生之间的竞争以及所需的准备工作。你可以讨论诸如高标准、大量参与者以及伴随而来的压力等因素，这些通常使大多数人难以成功。你还可以提到成功取决于个人努力、资源的获取，有时甚至还需要运气。提供例子或统计数据有助于说明你的观点。