单项选择题

What is the talk’ mainly about

A．Automobile safety.
B．Increasing fuel efficiency.
C．California’s pollution laws.
D．Electric-powered cars.
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单项选择题
what is the conversation mainly about
A．The effects of. caffeine.
B．Some causes of headaches.
C．How to do well on exams.
D．Problems with the student cafeteria.
单项选择题
What does the man think is a disadvantage of distance learning
A．It requires too much traveling.
B．It limits interaction among students.
C．It will increase class size.
D．It will encourage students to watch too much television.
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