【单选题】What do we learn about the first of the Chinese high-speed trains? PASSAGE China is designing its next generation of trains that can carry passengers at a top speed of 500 kilometers (310 miles) an ho...
【单选题】What do we learn about the first of the Chinese high-speed trains? PASSAGE PASSAGE PASSAGE China is designing its next generation of trains that can carry passengers at a top speed of 500 kilometers (...