Package Rate 是指（）

ForwardRate和FutureSpotRate是指同一个概念，即远期汇率。()

A.网络广告被点击的频率

B.网络广告被点击次数与显示次数之比

C.网络广告显示的频率

D.网络广告被浏览的频率

点进率 (Click Rate)是指

A.网络广告被点击次数与显示次数之比

B.网络广告被点击的频率

C.网络广告被浏览的频率

D.网络广告显示次数与被点击次数之比

此题为判断题(对，错)。

______(Variable Rate Technologies)是指安装有计算机、DGPS等先进设备的农机具可以根据它所处的耕地位置自动调节货箱里某种农业物料投人速率的一种技术。

计算利率的函数是指()

A. ACCRINT、ACCRINTM、NOMINAL、RATE

B. EFFECT、INTRATE、CUMIPMT、IPMT

C. EFFECT、INTRATE、NOMINAL、RATE

D. ACCRINT、ACCRINTM、CUMIPMT、IPMT

A.RLC rate = MAC rate×90%

B.RLC rate = MAC rate×80%

C.RLC rate = MAC rate×70%

D.RLC rate = MAC rate×60%

Populations tend to grow at an exponential (指数的) rate. This means that they progressively double. As an example of this type of growth rate, take one penny and double it every day for one month. After the first week you would have only 64 cents, but after the fourth week you would have over million dollars. This helps explain why the population has come on "all of a sudden". It took from the beginning of human life to the year 1830 for the population of the earth to reach one billion. That represents a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960, only thirty years, and in 1979 world population reached 4 billion, which is another billion people in only fifteen years. World population is increasing at a rate of 9 000 per hour, 220 000 per day, 80 million per year. This is not only due to high birth rates, but to lower death rates as well. The number of births has not declined at the same rate as the number of deaths. Some countries, such as Colombia, Thailand, Morocco, Costa Rica, and the Philippines, are doubling their populations about every twenty-one years, with a growth rate of 3. 3 percent a year or more. The United States is doubling its population about every eighty-seven years, with a rate of 0. 8 percent per year. Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people, it is easy to see that this is very difficult to achieve for the more rapidly growing countries.

This passage chiefly discusses______.

A．the growth of world population in recent years

B．one type of the exponential rate

C．the population problem of the more rapidly growing countries

D．the possible ways of dealing with the rapid population growth

Population tends to grow at an exponential( 指数的)rate. This means that they progressively double. As an example of this type of growth rate take one penny and double every day for one month. After the first week, you would have only 64 cent, but after the fourth week you would have over a million dollars.

This helps explain why the population has come on“all of a sudden”took from he beginning of human 1ife to the year 1830 for the population of the earth to reach one billion. That repents( 缓慢进行) a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960 only thirty years and in 1975 world population reached 4 billion which is another billion people in only fifteen years.

World population is increasing at a rate of 9, 000per hour, 220, 000 per day and 80 million per year. This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.

Some countries such as Columbia, Thailand, Morocco, Costa Rica and the Philippines are doubling their population about every twenty-one years with a growth rate of 3 percent a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0. 8 percent per year. Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.

This passage chiefly discusses______________

A.the growth of world population.

B.one type of the exponential rate.

C.the population problem of more rapidly growing countries.

D.the possible ways of dealing with the rapid population growth.

According to the passage what helps to explain why the population problem has come on “all of a sudden” ?A.The penny that doubles itself every day for one month.

B.The time span of at 1east two million years in human history.

C.An illustration of the exponent growth rate given by the author.

D.The large amount of money you would luckily make after the fourth week.

It took_________ for the world to increase its population from 1 billion to 4 billion.

A.100 years

B.175 years

C.1975 years

D.over two million years

Which of the following statements is NOT true?A.World population is increasing at a rate of 150 per minute.

B.Lower death rate also contributes to world population growth.

C.The population of Columbia has been doubling every year for 21 years.

D.The United States is usually doubling its population on about every 87 years.

When a population doubles, the country involved needs twice as much of everything including __.A.hospitals and medicines

B.schools and students

C.food and manpower resources

D.all of the above

请帮忙给出每个问题的正确答案和分析，谢谢！

Population tends to grow at an exponential(指数的)rate. This means that they progressively double. As an example of this type of growth rate take one penny and double every day for one month. After the first week, you would have only 64 cent, but after the fourth week you would have over a million dollars.

This helps explain why the population has come on“all of a sudden” took from he beginning of human 1ife to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行) a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960 only thirty years and in 1975 world population reached 4 billion which is another billion people in only fifteen years.

World population is increasing at a rate of 9, 000per hour, 220,000 per day and 80 million per year.

This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.

Some countries such as Columbia, Thailand, Morocco, Costa Rica and the Philippines are doubling their population about every twenty-one years with a growth rate of 3.3 percent a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0.8 percent per year.Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.

This passage chiefly discusses

A.the growth of world population.

B.one type of the exponential rate

C.the population problem of more rapidly growing countries.

D.the possible ways of dealing with the rapid population growth

According to the passage what helps to explain why the population problem has come on “all of a sudden”?A.The penny that doubles itself every day for one month

B.The time span of at 1east two million years in human history.

C.An illustration of the exponent growth rate given by the author.

D.The large amount of money you would luckily make after the fourth week

Which of the following statements is NOT true?A.World population is increasing at a rate of 150 per minute

B.Lower death rate also contributes to world population growth

C.The population of Columbia has been doubling every year for 21 years.

D.The United States is usually doubling its population on about every 87 years.

It took ______ for the world to increase its population from 1 billion to 4 billion.A.100 years

B.175 years

C.1975 years

D.over two million years

When a population doubles, the country involved needs twice as much of everything including __.A.hospitals and medicines

B.schools and students

C.food and manpower resources

D.all of the above

请帮忙给出每个问题的正确答案和分析，谢谢！