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The hot spot theory may prove useful in explaining ________.

发布时间:2024-07-12

A.the structure of the African plates

B.the revival of dead volcanoes

C.the mobility of the continents

D.the formation of new oceans

试卷相关题目

  • 1That Africa and South America were once joined can be deduced from the fact that ________.

    A.the two continents are still moving in opposite directions

    B.they have been found to share certain geological features

    C.the African plate has been stable for 30 million years

    D.over 100 hot spots are scattered all around the globe

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  • 2The author believes that ________.

    A.the motion of the plates corresponds to that of the earth’s interior

    B.the geological theory about drifting plates has been proved to be true

    C.the hot spots and the plates move slowly in opposite directions

    D.the movement of hot spots proves the continents are moving apart

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  • 3The word “demographers” (Line 1, Paragraph 8) most probably means ________.

    A.people in favor of the trend of democracy

    B.advocates of migration between states

    C.scientists engaged in the study of population

    D.conservatives clinging to old patterns of life

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  • 4We can see from the available statistics that ________.

    A.California was once the most thinly populated area in the whole US

    B.the top 10 states in growth rate of population were all located in the West

    C.cities with better climates benefited unanimously from migration

    D.Arizona ranked second of all states in its growth rate of population

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  • 5The census distinguished itself from previous studies on population movement in that ________.

    A.it stresses the climatic influence on population distribution

    B.it highlights the contribution of continuous waves of immigrants

    C.it reveals the Americans’ new pursuit of spacious living

    D.it elaborates the delayed effects of yesterday’s “baby boom”

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  • 6The passage is mainly about ________.

    A.the features of volcanic activities

    B.the importance of the theory about drifting plates

    C.the significance of hot spots in geophysical studies

    D.the process of the formation of volcanoes

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