单项选择题

From Paragraph 5 we can learn that ______.

A．the number of segregated smokers is on the rise
B．the number of male smokers is decreasing gradually
C．the number of female smokers is increasing now
D．the number of nonsmokers is larger than that of smokers

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单项选择题

Which of the following is aimed at the restriction of smoking according to the passage

A．Closing down large numbers of cigarette factories.
B．Rewording those who never smoke.
C．Encouraging export of cigarettes.
D．Putting health warnings on cigarette packages.

单项选择题

When you are traveling around the world, you will find that ______.

A．the topic of nonsmokers' rights is a hot issue for discussion
B．the expression "Don't puff on me" is posted everywhere
C．few countries pay attention to nonsmokers' rights
D．smokers are forced to give up smoking to keep the air clean