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Losing amphibians means losing

发布时间:2024-07-09

A.knowledge about fatal human diseases.

B.knowledge about air and water pollution.

C.a chance to discover new medicines.

D.an opportunity to detect poisonous gases.

试卷相关题目

  • 1When did British gentlemen begin to wear ties regularly、

    A.After the late 19th century.

    B.In the 1630s.

    C.In 1660.

    D.In the late 18th century.

    开始考试点击查看答案
  • 2Who brought the Frenchmen's neckwear to Britain、

    A.Tony Blair.

    B.Charles ll.

    C.Jim Callaghan.

    D.Andrew Turnbull.

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  • 3Which of the following is NOT a social occasion、

    A.Going to church.

    B.Going to work in the office.

    C.Staying at home.

    D.Going to a party.

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  • 4Why does Blair sometimes show up in a formal event without a tie、

    A.Because he wants to make a show

    B.Because he wants to attract attention.

    C.Because ties are costly.

    D.Because he wants to live in a casual way.

    开始考试点击查看答案
  • 5The tie symbolizes all of the following except

    A.respect

    B.elegance

    C.politeness

    D.democracy

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  • 6Amphibians lay their eggs

    A.in any stream they can find,

    B.in places without UV light,

    C.only on san

    D.D.only in the right conditions

    开始考试点击查看答案
  • 7The arroyo toad is disappearing because

    A.it has been threatened by frogs.

    B.it is losing its habitat.

    C.a disease has been killing its eggs.

    D.it can't bear the cold of winter.

    开始考试点击查看答案
  • 8Coal miners once used the canary bird to detect

    A.poisonous gases.

    B.air pollution.

    C.water leakage.

    D.radiation.

    开始考试点击查看答案
  • 9Scientists think that the decline of amphibians could

    A.cause environmental change.

    B.cause a decline in other kinds of animals.

    C.be a warning signal for human beings.

    D.be a good sign for human beings.

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  • 10Belle would be fed some fruit juice if she

    A.grasped the joystick.

    B.moved the joystick to the side of the light.

    C.sat quietly in a special chair.

    D.watched lights on a display panel.

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