网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
名词解释题
群体改良(Population Improvement)

参考答案

参考解析
解析: 暂无解析
更多 “名词解释题群体改良(Population Improvement)” 相关考题
考题 ● In order to achieve the major goals of business process improvement, process simplification and improvement, FAA managers need to fully understand the cost, time, and quality of activities performed by employees or machines throughout an entire organization. ABC methods enable () to cost out measurements to business simplification and process improvement. () A. computers B. managers C. clients D. consumers

考题 完形填空Many of the world’s pollution problems have been caused by the crowding of large groups of people into cities.Satisfying the 21 of the people leads to further polluting by industry.If the rapid increase in human population 22 at the present rate (比率), there may be much greater harm.Some scientists speak of the 23 in number of people as “Population Pollution”.About 2000 years ago, the world 24 was probably about 250 million.It reached a billion in 1850.By 1930 the population was two billion.It is 25 three and a half billion.It is expected to double by the year 2000.If the population continues to grow at the same 26 , there would be 25 billion people in the world a hundred years from now.Man has been using the earth’s 27 more and more rapidly over the years.Some of them are almost gone.Now many people believe that man’s greatest 28 is how to control the growth of this population.The materials in the world will not support the human population in time to come if the present rate of increase continues.29 there is over crowding in the cities and hunger in some countries.Can man’s rate of increase continue?Many people believe that human survival (幸存者) in the future 30 on the answer to the question.21.A.needsB.suppliesC.serviceD.supports22.A.stopsB.continuesC.slows downD.adds to23.A.increaseB.reduceC.countryD.improvement24.A.peopleB.situationC.populationD.land25.A.nowB.in the pastC.in the futureD.then26.A.placeB.timeC.rateD.result27.A coalB.oilC.minesD.resources28.A.problemB.powerC.planD.idea29.A.AlreadyB.YetC.StillD.Often30.A.feedsB.livesC.keepsD.depends

考题 Population experts tell us that by the year 2025, the population in cities in developing nations will increase to five times its present size.()

考题 which of the following statements is not true about maori population?A. Maori population makes up nearly one-seventh of New Zealand s total population.B. Maori population is younger than the total population.C. Non-Maori women tend to have children earlier than Maori women.D. Maori women tend to have more children than non-Maori women.

考题 Which of the following statements is NOT true?A) World population is increasing at a rate of 150 per minute.B) Lower death rates also contribute 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 about every 87 years.

考题 The first step in the continuous improvement is to ( ). A. identify improvement strategies B. collect data C. identify of measurement target D. process data

考题 The population of the earth()increasing fast. One third of the population here()workers.Ais;areBis;hasbeenCare;isDis;was

考题 改良和保存白菜型油菜采用()是无效的。A、混合选择B、单株选择C、集团选择D、群体选择

考题 The population of the earth()increasing fast. One third of the population here()workers.A、is;areB、is;hasbeenC、are;isD、is;was

考题 群体黑洞往往可以通过改良、改革或革命性运动进行自救。

考题 群体内改良的方法有哪些()?A、混合选择法B、改良穗行选择法C、自交后代选择法D、半同胞轮回选择E、全同胞轮回选择

考题 群体改良的原理。

考题 选育自交系的基本材料有:()、()、()以及经轮回选择的改良群体。

考题 帕累托改进(Pareto improvement)

考题 群体(population)

考题 问答题常用的异花授粉作物群体改良主要有哪些方法?

考题 问答题自花授粉作物群体改良应首先解决什么问题?

考题 问答题群体改良的意义。

考题 名词解释题群体改良

考题 问答题什么是群体改良,具有什么特点?

考题 填空题群体间改良的轮回选择法中同时改进两个群体的方法为()。

考题 问答题试述群体间改良的轮回选择法?

考题 单选题—What ______ the population of China?—One third of population ______ workers here.A is; areB are; areC is; isD are; is

考题 单选题群体内按统一标准,群体间按多项标准选择,其方法为()。A 集团选择法B 改良混合法C 衍生系统法D “一粒传”混合法

考题 单选题Which statement is true about Malta’s immigrant population?A It has a large immigrant population.B Its immigrant population is more than 3,000.C Its immigrant population totals 7,000.D Its immigrant population comes to less than 1% of the island’s 400, 000 population.

考题 多选题群体内改良的方法有哪些()?A混合选择法B改良穗行选择法C自交后代选择法D半同胞轮回选择E全同胞轮回选择

考题 问答题Do at least 20 percent of the people in country X who are over the age of 25 possess a college diploma?  (1) In country X, among the population over the age of 25, 26 percent of the male population and 16 percent of the female population possess college diplomas.  (2) In country X, women account for 55 percent of the total population.