单项选择题

In regard to the production of goods in greater quantities, the author states that （）

A．the price of the goods would drop
B．the price of the goods would rise
C．the quality and the price would rise
D．the quality would rise and the price would drop

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单项选择题

When the demand for facial tissues increased, the supply（）

A．was not stopped
B．became more competitive
C．remained unchanged
D．was increased to keep up with the demand

单项选择题

The price of facial tissues goes down when （）

A．fewer customers buy them
B．more and more of them are produced
C．their quality becomes poorer
D．more manufacturers produce them.