单项选择题

A．The distance-learning course is free of charge.
B．The distance-learning course is taught by professors overseas.
C．There is no regular class in the distance-learning course.
D．There is no exam in the distance-learning course.
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单项选择题
A．They published scientific evidence to determine second hand smoke as a cause of cancer.B．They denied the suspicion that second hand smoke may cause cancer.C．They discovered all the causes of cancer.D．They agreed that moderate smoke won’t cause cancer.
A．They published scientific evidence to determine second hand smoke as a cause of cancer.
B．They denied the suspicion that second hand smoke may cause cancer.
C．They discovered all the causes of cancer.
D．They agreed that moderate smoke won’t cause cancer.
单项选择题
A．She loves shopping very much.B．She has a lot of studying.C．She always gets high marks in her exams.D．She went shopping with the women yesterday.
A．She loves shopping very much.
B．She has a lot of studying.
C．She always gets high marks in her exams.
D．She went shopping with the women yesterday.
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