As of June 2018, China’s first high speed railway stands at 26,869 km in total length, accounting for about 64% of the world’s high-speed rail tracks in commercial service.

As of June 2018, China’s first high speed railway stands at 26,869 km in total length, accounting for about 64% of the world’s high-speed rail tracks in commercial service.
A.正确
B.错误
正确答案：正确