One of the reasons for the growth of population in Florida is because of its（）Aexpanding economyBlarge number of Cuban-AmericansCclimateDexotic food
One of the reasons for the growth of population in Florida is because of its（）
Aexpanding economy
Blarge number of Cuban-Americans
Cclimate
Dexotic food
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What is the 'biggest city in the world? That is, (21) city has the largest population? This seems like (22) question to answer, but actually it isn't.It's actually rather difficult to say which cities (23) the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large (24) area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.The second reason that it is difficult to 25 the population of different cities is this: it is almost impossible to get (26) about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an (27) of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for (28) different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.So we can say that these are our two (29) for comparing the populations of cities: one, it's difficult to determine the (30) of a city, and two, it is difficult to get accurate information.21. A. whatB. whichC. whereD. how
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The population of the earth（）increasing fast. One third of the population here（）workers.Ais;areBis;hasbeenCare;isDis;was
The population of the earth（）increasing fast. One third of the population here（）workers.A、is;areB、is;hasbeenC、are;isD、is;was
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单选题The author of Passage 1 most likely refers to logging (line 26) to ______.Aexplain why there are so many orphan chimpsBcriticize the inhabitants of several African nations for their cruel actionsCoffer an alternative industry to capturing chimpanzeesDdescribe one of the reasons the chimp population is decreasingEelucidate the factors contributing to Africa's economic development
单选题A major source of population growth is（）AimmigrationBbaby boomCrising birth rateDlarger number of young people
问答题Pollution 1)Pollution is a problem because man, in an increasingly populated and industrialized world，is upsetting the environment in which he lives. 2) Many scientists maintain that one of man's greatest errors has been to equate growth with advancement. 3) Now “growth” industries are being looked on with suspicion incase their side effects damage the environment and disrupt the relationship of different forms of life. 4) The growing population makes increasing demands on the world’s fixed supply of air, water and land. 5) This rise in population is accompanied by the desire of more and more people for a better standard of living. 6) The problem has been causing increasing concern to living things and their environment.
单选题—What ______ the population of China?—One third of population ______ workers here.Ais; areBare; areCis; isDare; is
单选题Detroit owes its rapid growth and one time prosperity（）the automobile, and above all to Henry Ford.AatBfromCtoDon