癫癎综合征
参考答案：
某些癫痫患者，无论其病因是否相同，因具有一组相同症状与体征，在临床上特称为癫癎综合征。
Look and judge. 看图，判断正(T)误(F)。
1.This country is Canada. The capital city of Canada is Canberra. They speak English. ( )
2.This country is the U. K. The capital city of the U. K. is London. ( )
3.This is Tian'anmen Square. It is in Beijing. ( )
4.This is south. South points down. ( )
5.In this country, there are beautiful beaches. The capital city is Ottawa. ( )
金属加工后的废切削液中含2-5%的NaNO2，它是一种环境污染物．人们用NH4Cl溶液来处理此废切削液，使NaNO2转化为无毒物质．该反应分两步进行：
第一步NaNO2+NH4Cl=NaCl+NH4NO2
第二步NH4NO2=N2↑+2H2O
下列对上述反应的叙述中正确的是（ ）
A．上述两步反应可合并为NaNO2+NH4Cl=NaCl+NH4NO2+N2+2H2O
B．第一步反应属于置换反应
C．第二步反应属于分解反应
D．第二步反应中氮元素的最低化合价为零
This country is Canada. The capital city of Canada is Canberra. They speak English. ( ) 
This country is the U. K. The capital city of the U. K. is London. ( ) 
This is Tian'anmen Square. It is in Beijing. ( ) 
This is south. South points down. ( ) 
In this country, there are beautiful beaches. The capital city is Ottawa. ( )