甲、乙两名自行车爱好者准备在一段长为3 500米的笔直公路上进行比赛，比赛开始时乙在起点，甲在乙的前面．他们同时出发，匀速前进，已知甲的速度为12米/秒，设甲、乙两人之间的距离为s（米），比赛时间为t（秒），图中的折线表示从两人出发至其中一人先到达终点的过程中s（米）与t（秒）的函数关系．根据图中信息，回答下列问题：

（1）乙的速度为多少米/秒；

（2）当乙追上甲时，求乙距起点多少米．

（3）求线段BC所在直线的函数关系式．

    Ms. Smith lived in a small village. She was born with a silver spoon. When her parents died， they left her a lot of money. After that， she lived on her own. Unfortunately， she became blind after a serious illness. She went to see lots of famous doctors， hut nobody was able to cure her eyes. She felt very sad.

    One day, a man named Tom came to the village where Ms. Smith lived. He heard about her illness and came to her house. He told Ms. Smith that he had much experience. He was sure to cure her eyes. But she must pay him a large amount of money. Ms. Smith agreed. “But you can't get a penny if you fail，" said the lady.

    During the treatment， Tom found Ms. Smith was very rich. There were plenty of good thing in her house. He stole many valuable things from the house. Several weeks later， Tom cured Ms. Smith. The lady could really see with her eyes. When Tom asked for moneys. Ms. Smith refused. She said. '*You haven't cured my eyes. Before I was blind， I could see all the things in my room.    ⑸     ”

Hearing that， Tom stood there and couldn't say a word.

亚洲、欧洲流经国家最多的国际性河流分别是 (  )

二战期间日本的经济受到重创，二战以后，短短几十年的时间，日本的经济迅速发展，成为世界经济强国。结合有关知识，判断下列关于日本经济说法正确的是（   ）