单项选择题

A．I hour.
B．2 hours.
C．3 hours.
D．Four hours.
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单项选择题
A．Students are less interested in the topics.B．Most courses for senior students are given on a one-to-one basis.C．The size of lecture classes shouldn’t have been that large.D．There are more choices available for students.
A．Students are less interested in the topics.
B．Most courses for senior students are given on a one-to-one basis.
C．The size of lecture classes shouldn’t have been that large.
D．There are more choices available for students.
单项选择题
A．Less than 15 hours.B．15 Hours on average.C．Up to 20 hours.D．30 hours at most.
A．Less than 15 hours.
B．15 Hours on average.
C．Up to 20 hours.
D．30 hours at most.
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