[多项选择]MTO责任制有（）。
A. 单一责任制
B. 网状责任制
C. 同一责任制
D. 严格责任制
E. 分段责任制

Passage Five Language is a way to communicate with each other. We started to learn language when we were born. However, people are used to speaking their native language, so immigrants are having many problems between the first generation and the second generation because they don’t have the same native language. Also, the second generation is losing their identity. Especially in America, there are many immigrants that came from different countries to succeed in the States. Because they suffer in lots of areas such as getting a job and trying to speak English, they want their children to speak English, not only at school, but also at home in order to be more successful. Because of this situation, their children are losing their ethnic identity and, even more, they are ignoring their parents whose English is not very good. For example, my aunt, who has been living in Chicago for fifteen years, has three children and they were all born in the States. The eighteen-year-
A. Second generation immigrants are usually eager to learn their parents' native language.
B. It is often hard for first and second generation family members to communicate with each other.
C. Because second generation immigrant children often speak only English, they may lose their ethnic identity.
D. Sometimes second generation immigrant children ignore their parents because of language differences.