题目内容

Economists are interested in all the factors that can help to ______ the extent to which a price change will affect supply and demand in the market.

A. predict
B. label
C. sense
D. deceive

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Starting Monday, all foods _______ “organic” must be up to the strict national standards that the government decided to put into effect now.

A. paralleled
B. organized
C. labeled
D. acquainted

There is more to a woman than her looks, so I _______ the fact that after a woman grows old and loses her looks people stop paying attention to her.

A. resent
B. present
C. distract
D. quit

Apart from technological development, the 20th century ________ an enormous worldwide political, economic and cultural transformation.

A. introduced
B. witnessed
C. included
D. proposed

Unlike the practice in China, if you're at a hotel restaurant in the United States, expect a15-20 percent service charge or add the _______ amount yourself.

A. equivalent
B. equivalence
C. equipment
D. equality

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