Passage 1Thailand is a country that lies in the heart of Southeast Asia. Cambodia and Laos border the country to the east and northeast, and Myanmar lies to the northwest. To the west is the Andaman Sea and the Gulf of Thailand, southeast of Burma. The largest city in Thailand is Bangkok, the capital, which is also the country's political, commercial, industrial, and cultural centre. There are other well-known tourist destinations such as Pattaya, Phuket, Chiang Mai and Ko Samui. Chiang Mai is a major gateway to northern Thailand that is becoming an increasingly popular tourist destination.题目： According to the passage, Thailand borders with the following countries EXCEPT____. ( )