单项选择题

What is online distance learning

A．All interaction between teachers and students is accomplished "online" through an Internet or intranet connection.
B．Learning at home.
C．A system of learning on your own by writing letters.
D．A learning system for college and university students.

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单项选择题

According to the passage, which of the following statements is NOT true

A．In rich countries people are becoming more aware of the health risks of cigarettes and smokers are starting to quit.
B．More than half of the smokers in the world are in Asia.
C．More and more people in poorer countries are getting into the habit of smoking.
D．Despite years' cigarette advertising restrictions in rich countries, cigarette sales worldwide are ever increasing.

单项选择题

Sometimes online distance learning can be a problem because ______.

A．it is not as interesting as face-to-face learning
B．the learners only have the written text
C．some students don't know how to organize their time
D．some learners don't need face-to-face cues