单项选择题

A．To make coins lighter.
B．To conserve silver.
C．To use up surplus copper.
D．To make coins last longer.
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单项选择题
How do propagandists argue for the U.S.drug pricing policy
A．Low prices will affect the quality of medicines in America.
B．High prices are essential to funding research on new drugs.
C．Low prices will bring about the anger of drug manufacturers.
D．High-price drugs are indispensable in curing chronic diseases.
单项选择题
A．To introduce the woman to someone who has researched blushing.B．To illustrate the benefits of a public speaking class.C．To give an example of an adult who blushes easily.D．To explain a way to overcome blushing.
A．To introduce the woman to someone who has researched blushing.
B．To illustrate the benefits of a public speaking class.
C．To give an example of an adult who blushes easily.
D．To explain a way to overcome blushing.
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