单项选择题

A．Teacher and student.
B．Employer and employee.
C．Friends.
D．Classmates.
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单项选择题
A．Purchase her plane ticket.B．Change her plane ticket.C．Pick up a passport application form.D．Arrange for her accommodations in Europe.
A．Purchase her plane ticket.
B．Change her plane ticket.
C．Pick up a passport application form.
D．Arrange for her accommodations in Europe.
填空题
The Nano Business Alliance is originally composed of nanotech startups, major corporations and______.
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