What（）the population of the USA?A、isB、areC、haveD、has
What（）the population of the USA?
- A、is
- B、are
- C、have
- D、has
相关考题：
In what aspect does State University remain the same?A．The main campus.B．The student population.C．The age-old ideals.D．The programs of the Division of Continuing Education.
What does the author mean by the word "progress" in this passage?A．Urbanization.B．Economic growth.C．Cultural development.D．Increase of population.
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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下面说明不正确的是______。A．char a[10]="USA"；B．char a[10]，*p=a；p=a;p="USA"；C．char*a;a="USA"；D．char a[10]，*p;a=p="USA"；
What will be the population of our country by the end of（）Atwentyone centuryBthe twentyone centuryCthe twentyfirst centuryDtwentyfirst century
What will be the population of our country by the end of（）A、twentyone centuryB、the twentyone centuryC、the twentyfirst centuryD、twentyfirst century
单选题What is worth nothing from the example of Athens County is that _____.Agreater efforts should be made to improve people’s living standardsB70 percent of the people there have been, employed for two yearsC50 percent of the population no longer relies on welfareDthe living standards of most people are going down
单选题What will be the population of our country by the end of（）Atwentyone centuryBthe twentyone centuryCthe twentyfirst centuryDtwentyfirst century
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单选题The main purpose of the essay is to describe the life cycle of the lobsterAdescribe the life cycle of the lobsterBexplain the problems that arise when raising captive lobstersCshow that no matter what hatcheries do, they cannot help the lobstersDconvey the need for more funding for lobster hatcheriesEillustrate how and why lobster hatcheries work to maintain the lobster population
单选题What happens because of the traditional fire-fighting practices in the USA?AThere are fewer wildfires.BTrees and grass become thicker.CThe weather becomes warmer and drier.DSunlight reaches the ground to help forests.