题目

阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。 My house is made of wood, glassand stone. It is also made of software. If you come to visit, you'll probablybe surprised when you come in. Someone will give you an electronic PIN (个人身份证号码) to wear. This PIN tells the house who and where you are. The houseuses this information to give you what you need. When it's dark outside, the PINturns on the lights nearest you, and then turns them off as you walk away from them.Music moves with you too. If the house knows your favorite music, it plays it. Th2007年9月22日起，松江城区已有18条交通线路运行，给松江人民的出行带来了很大的方便，试问：城区相邻两站点之间的距离约为（　　）A．10000米B．1000米C．100米D．10米