把红色、绿色、黄色和蓝色的小棒各8根混在一起。如果让你闭上眼睛，每次最少拿出几根才能保证至少有2根同色的小棒？如果要保证有2对同色的小棒呢？
5根；7根
宗地外环境发生变化，使宗地与外界不适合，则产生功能折旧。()
用括号内所给词的适当形式填空。
1. The white bus is _____ .The red bus is _____ than the white one. The green bus is _____ of all. (long)
2. Jim's kite is _____ Bill's is _____ than Jim's. The third one is _____ _____ of the three. (nice)
3. The first glass is _____ . The second one is _____ than the first one. The third one is _____ of the
three. (old)
4. The yellow coat is _____. The blue one is _____ than the yellow one. The brown one is _____ of the
three. (good)
5. This shirt looks _____ than that one (beautiful)but it is very _____ (dear).
