单项选择题

What can we infer from the first two sentences in the second paragraph

A．Producers can satisfy the consumers by mechanized production.
B．Consumers can express their demands through producers.
C．Producers decide the prices of products.
D．Supply and demand regulate prices.
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单项选择题
According to the passage, which statement is tree
A．If the product is in short supply compared with demand, the producers are unlikely to increase its production.
B．Producing more of a commodity results in elimination of parts of goods.
C．Consumers' demands actually control the 'price of the commodity.
D．Price may reflect the relationship between supply and demand directly.
单项选择题
How were athletes of ancient Olympic Games rewarded by the event
A．Some of them were honored by having a ring of holy olive leaves.
B．Most of them, in fact, were richly rewarded with prize money by their countries.
C．The winner of foot race was honored by having holy olive leaves instead of prize money.
D．The winner of foot race was the most honorable one, for his name would be remembered for at least a year.
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