根据第一段Since the invention of the first steam-powered locomotive in the UK in 1804(自从1804年英国发明了第一台蒸汽火车以来)可知,第一列火车是在19世纪出现的。故选B。(2)句子理解题。根据第二段The train No.5609/5610,which runs between Chongqing and Xiushan county,is a pub...
China houses over fifty ethnic groups and almost three-hundred languages. Within it, the collective languages of Chinese origin are known as Hanyu and they span eight primary branches which sound and are spoken in completely different ways. The main variety of the Chinese language spoken is Mandar...