A.Social network has negative impact on well-being.
B.Facebook is bad for users' in-the-moment mood.
C.Whether people can actively use social network.
D.Whether Facebook will make you sad depends on how you use it.
A.aging problem
B.educational system
C.economic structure
D.financial deficits
A.The Latino population in Arizona is made up of Hispanics and Mexican-Americans.
B.The first-generation Latinos are immigrants instead of being born in America.
C.70 percent of the first-generation Latinos had less schooling than nine years.
D.The educational system used to be in favour of the non-Hispanic Whites.
A.the state did not put much money into education
B.many Latinos are too poor to obtain education
C.education is not a profitable enterprise
D.many Latinos are not well-educated