举一反三
- Why will the population in poorer countries increase（） A: Because they need more labor to support the family. B: Because the people have the habit to have a big family. C: Because the people there are poorer. D: Because the people there want to be rich.
- There is a rapid increase in population in that country that has caused a food (short) ________.
- We are confident that we ______________ our export sales by 15 percent by the end of this year. A: increase B: had increased C: would increase D: will have increase
- 1.Although we have made an effort to keep the price favorable,due to the increase in production cost ,we have to inform you of an increase in price by our skirts. .
- An increase in production without an increase in productivity will reduce unit costs. ( )
内容
- 0
中国大学MOOC: In the specific factors model, which of the following will increase the quantity of labor used in food production?
- 1
For Susie, a 7 percent increase in income results in a 12 percent increase in the quantity demanded of pizza. For Susie, the income elasticity of demand for pizza is_________.
- 2
What changes have taken place in food compared with 20 years ago?（） A: Volume increase B: Volume decrease C: Calories increase D: Calories decrease
- 3
___________________ refers to a rapid increase in the size of a population caused by such factors as a sudden decline in infant mortality or an increase in life expectancy. It particularly means the very great and continuing increase in human population in modern times. Optimal population size appears adequate for economy, education, healthcare, and environment.
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It is a trend that shows no sign of slowing. Demographers (人口统计学者) reckon that three-quarters of humanity could be city-dwelling by 2050, with most of the increase coming in the fast-growing towns of Asia and Africa.(CET6-2015.6)