【正确答案】 D

【答案解析】根据文章第—段最后一句话And a single train can Carry goods which a plane or motorcar could never do.(一列火车所运载的货物是飞机或汽车所不能比的。)因此选D)。
[避错指导] A)“坐飞机比坐火车便宜”，根据第一段第五行If you want to carry people or goods from place to place，they are cheaper than planes．(要运输货物或载送旅客，火车比飞机便宜。)可知A)错误；B)“火车站通常在郊区”；C)“一下飞机就身处市中心”。根据文章第—段倒数第三至四行What is more，it akes-from the heart Of a city into the heart of another，It doesn't leave you as a plane does，miles and miles from the city center．可推断出，火车站通常在市中心，而飞机场通常在郊区，因此B)和C)是错误的。