单项选择题

Many scientists hold that global warming can be controlled by.

A．reducing the polar bear population.
B．paying more attention to the earth's rising temperatures
C．reducing carbon dioxide emissions
D．refreezing the polar ice caps

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单项选择题

According to the text, which of the following may lead to enduring innovations in dress

A．A fad.
B．Changing tastes of the public.
C．A sudden scarcity of a particular material.
D．The passage of time.

单项选择题

It can be inferred from the text that ______.

A．the Ancient Greeks had the most developed sense of fashion
B．fashion is about more than just clothes
C．many people fail to recognize the value of fashion
D．humans have had a sense of fashion since the dawn of civilization