潜在的市场需求量是指在一定时期内，在一定行业营销水平和一定的市场环境下，一个行业中所有企业可能达到的最大消费量之和。 ()
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A．Their position at home has changed greatly.B．Their interests have become more variou
A. Their position at home has changed greatly.
B. Their interests have become more various.
C. They do not have to obey their husbands any longer.
D. They become more independent and self-confident.
A．Because he didn't hear the alarm.B．Because he forgot to wind the clock.C．Because his
A. Because he didn't hear the alarm.
Because he forgot to wind the clock.
C. Because his clock broke down.
D. Because he didn't have an alarm clock.
How is crude oil brought to the surface？
A. Expansion of the hydrocarbons.
B. Pressure and pumping.
C. Vacuum created in the drilling pipe.
D. Expansion and contraction of the earth's surface.
The intended audience of this passage are ______.
A. professors of economics
B. postgraduate students of international trade
C. beginners of business
D. business people
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