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    广西成考网> 成考试题题库列表页> 19. Natural gas can serve as an _____to coal and oil because it is more environmentally friendly.

    2021年专升本英语真题试卷

    卷面总分:150分     试卷年份:2021    是否有答案:    作答时间: 150分钟   

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    19. Natural gas can serve as an _____to coal and oil because it is more environmentally friendly.

    • A、option

    • B、extra

    • C、addition

    • D、alternative

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    I . Phonetics( 5 points)

    Directions:In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.

    1.( )

    • A、cake

    • B、gas

    • C、bag

    • D、tax

    50. Which of the following happened during their canoe trip?


    • A、They became angry with each other.


    • B、They were wounded by a wild animal.


    • C、They held each other to keep warm in the tent.


    • D、 They often lost their way in the forest.


    52. What is the main reason for reducing salt in food?


    • A、To improve the flavor of food.


    • B、To decrease the time for processing food.


    • C、To extend the shelf-life of food.


    • D、 To protect people against heart diseases.


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