如图是一个三级台阶，它的每一级的长，宽，高分别为100cm，15cm和10cm，A和B是这个台阶的两个相对的端点，A点上有一只蚂蚁想到B点去吃可口的食物，则它所走的最短路线长度为____ 

根据短文内容，完成表格。

    Nowadays, more and more teenagers go to study in foreign countries. If you want to do that, here's some information for you.

1  Though you have to spend much money on your education in China, you should know that studying abroad will cost you much more money.

2  You'll have to look after yourself and learn to be independent(独立的). When you say goodbye to your family, you should know that you're not going to travel for a week, but live in a foreign country. You'll have to do everything by yourself even when you are sick. You'll have to get used to the life there.

3  You can learn a foreign language more easily if you live in that country, but you may have some trouble before you can speak the language well.

4   You can make friends from other countries, but there may be some misunderstanding(误会) between you and your friends because of different cultures. Information Card

读读写写

水田里有绿油油的hé____苗。

普希金有一首诗：假如生活欺骗了你，不要忧郁，也不要愤慨；不顺心的时候，暂且容忍；相信吧，快乐的日子就会到来。请回答： 

①公车上书拉开了序幕    ②变法从开到失败历时103天

③谭嗣同在变法中遇害    ④变法使中国走上资本主义发展道路