那么，“我和他是同学”的数字信号为“0，01，1，10，00”，请照此代码用另一组信号表达你想说的一句话____．数字信号为：____．

如表表示合成氨反应（N₂+3H₂⇌2NH₃）在不同条件下达到平衡时混合物中氨的含量起始时v（N₂）：v（H₂）═1：3．分析表中数据，回答下列问题：

（1）200℃、100MPa时，平衡混合物中氨的含量已达0.988，如果继续增大压强____ 

（填“能”或“不能”）使平衡混合物中氨的含量等于1，理由是：____ 

（2）欲使平衡混合物中氨的含量增大，则可采取的措施有：____ 

（3）欲使平衡混合物中氨的含量为0.710，则选择的反应条件应为：____ 

句型转换

Thousands of years ago，human(人类)didn’t live in towns．Sometimes they would live in caves(洞穴)or build camps in the forest．
Only about thirty people1 in each camp．The men would go hunting while the woman and children2food from trees around the camp．All the food was 3 among people in the group．Every few weeks they moved to another place to find more food．It was a simple life，but people had to be 4 .They had to make everything that they needed，and they had to know a lot about plants and animals．
Nowadays most people live in towns and cities，and they work in offices and factories．Life is 5than in the old days．There are fewer 6，but there is less excitement．Some people go7  excitement  sailing round the world．climbing mountains，or exploring(探测)caves．
Most people look forward to the8,a time when they can enjoy a change from the normal life．For some this means going camping．But camping today is 9 from camping in the past．Gas cookers，ready-made food and air-beds mean people can camp much more10 than they did in the old times．