填空题

S1

【参考答案】

negative and positive effects．
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单项选择题
A．Professor Smith doesn’t hold seminars or discussions in his lectures.B．Students sometimes fall asleep in Professor Smith’s lectures.C．Professor Smith’s lectures are always well-attended.D．The front seats are very hard to get on campus.
A．Professor Smith doesn’t hold seminars or discussions in his lectures.
B．Students sometimes fall asleep in Professor Smith’s lectures.
C．Professor Smith’s lectures are always well-attended.
D．The front seats are very hard to get on campus.
单项选择题
The doctor warned him that his __________ chest pain might turn chronic if not treated in time.
A．perpetual
B．persistent
C．eternal
D．periodic
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