填空题 《复合题被拆开情况》 Shenzhen is a coastal city in the south of Guangdong Province. Just 40 years ago, Shenzhen was【T1】________. Benefiting from China’ s reform and opening-up【T2】________, it has now become one of China’ s biggest and most important cities. The city has been【T3】________one of the world’ s 25 top high-tech development cities. The opening of the high-speed train line to Hong Kong in 2018 has made Shenzhen a much more【T4】________for tourists. Now tourists can reach Shenzhen from downtown Kowloon in about 19 minutes! While Shenzhen does not have as many historical【T5】________as other famous cities in China, it has created a number of excellent theme parks.《问题》：【T4】