阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。China has launched the CR450 science and technology innovation project 【小题1】 (develop)an even faster train. According to the national plan, a more advanced bullet train, with a top operating speed of 400 kilometers per hour and an 【小题2】 (experiment)speed of up to 450 km per hour, the CR450 would soon be revealed.
By the end of 2022, China’s transportation network 【小题3】 (grow)to cover more than 6 million kilometers. From 2018 to 2022, China’s transportation sector (部门)saw investments ofl7 trillion yuan in fixed assets(固定资产), officials said at 【小题4】 news conference.
By the end of 2022, China’s railway network had covered 155, 000 km, of which 42, 000 km were high-speed railways, 【小题5】 (account)for more than two-thirds of the world’s high-speed railways. In addition, China has developed the world’s 【小题6】 (large)road network, which covers 5. 35 million kilometers, of which 177, 000 km are freeways. China, 【小题7】 also has 128, 000 km of inland waterways and 21, 000 berths (泊位), can accommodate industrial production.
Fifty-three cities have city metro transportation systems, with 【小题8】 (they)operations covering a total of 9, 584 km. Nearly all administrative villages, towns and counties have access 【小题9】 hardened roads and bus services. Post 【小题10】(office)are established in all towns.