【语篇导读】这是一篇应用文。文章主要介绍了中国政府许无签证的外籍游客可以在中国停留72小时,在这72小时内,他们不容错过的北京四个旅游目的地。博21.细节理解题。根据第二段中 Youn trip Beijing isn'' really complete without seeing one of theNew Seven Wonders of the World, the Great Wallo Chinay The Mutianyu section of the Great Wall is by far the most wellpreserved- of all.(如果你没有看到“世界新七大奇迹之的中国长城,你的北京之旅就不算真正的完整。到目前为止,慕田峪长城是所有长城中保存最完好的)可知, Mutianyu Great Wall是目前保存最好的一部分。C. It is the most well-maintained- part of the Great Wall.(它是长城保存最完好的部分。)符合题意。故选C项。22.细节理解题,根据第四段中 This would be on the top of my list!(这将会是我旅游清单中的第一个)可知,如果你是作者,那798 Art Zone会是旅游清单中的第一个目的地。故选C项23.推理判断题。根据第一段中The Chinese government has permitted 7hour- visa-free policy that offers access to visitors from 53 countries including the US, France and Austria. Let's start with the capital of China, Beijing. Here's a pick of the best in Beijing!(中国政府批准了72小时免签政策,允许来自美国、法国和奥地利等5个国家的游客入境。让我们从中国的首都北京开始。以下是北京最好的旅游目的地!)可推断出,短文是写给要在北京待3天的外国人。B. The forcigners to stay in Beijing for3days.(要在北京待3天的外国人)符合题意故选B项