单项选择题

The poor and the rich usually develop different patterns of cancers because ______.

A．most of the rich people are living in industrialized countries
B．the poor people smoke more heavily than the rich
C．the two have different living conditions
D．the two have different attitudes toward life

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单项选择题

Which of the following statements is True

A．The poor will never develop the cancers usually found among the rich.
B．People in the third world countries are still suffering a lot from smallpox.
C．The WHO advised that the western lifestyle should be adopted by the poor.
D．Governments' wanting more tax revenues from tobacco is a barrier to the anti-smoking campaign.

单项选择题

You can expect a designer based in a furniture store to ______.

A．draw floor plans
B．give advice on color
C．help purchase furniture
D．work along with independent designers