Can you identify the main idea of this short article?

你能识别这篇短文的中心思想吗？

同一单元的其他句子

• The exam format includes multiple-choice, fill-in-the-blank, and essay questions.考试题型包括选择题、填空题和作文题。
• You should read the instructions carefully before answering each section.在回答每个部分之前，你应该仔细阅读说明。
• How many points is each question worth in the listening section?听力部分每题多少分？
• Do not leave any blanks unanswered; guess if necessary.不要留空不答，必要时可以猜测。
• The essay question requires you to support your arguments with examples.作文题要求你用例子支持你的论点。