单项选择题

A．Africans are not very brave and resourceful.
B．There is no treatment or healthcare center at all.
C．There were no effective prevention systems.
D．There was no formal education in Africa at all.
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单项选择题
A．It is a network for shopping malls, offices and homes.B．It relieves the heavy burden of teachers in school.C．It simplifies the process of making friends online.D．It quickens sales of software products and intelligence.
A．It is a network for shopping malls, offices and homes.
B．It relieves the heavy burden of teachers in school.
C．It simplifies the process of making friends online.
D．It quickens sales of software products and intelligence.
单项选择题
A．In various tents.B．In university buildings.C．In a hospital.D．In an auditorium.
A．In various tents.
B．In university buildings.
C．In a hospital.
D．In an auditorium.
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