单项选择题

A．They are more convenient.
B．Their storage space is more accessible.
C．They are more energy-efficient.
D．They take up less floor area.
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单项选择题
A．Five.B．Seven.C．Six.D．Eight.
A．Five.
B．Seven.
C．Six.
D．Eight.
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.
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