单项选择题


A．lose
B．have
C．enjoy
D．improve
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单项选择题
A．owedB．paidC．usedD．received
A．owed
B．paid
C．used
D．received
单项选择题
What is required of those who want to be university teaching assistant
A．A good knowledge in information technology.
B．A college degree in the right field.
C．The right licenses in education.
D．Full-time teaching experience.
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