How long did it take the orbiter to get close to mars、

试卷相关题目

• 1NASA built the mars climate orbiter to get information about __________.

  A.possible life on Mars

  B.the size of Mars

  C.the shape of Mars

  D.the atmosphere of Mars

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• 2We can conclude from this passage that ballet _________.

  A.will continue to change

  B.is a dying art

  C.is currently performed only in Russia

  D.is often performed by dancers with little training

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• 3Who had an important influence on early ballet、

  A.Balanchine

  B.Louis XIV

  C.Antoinette

  D.Diaghilev

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• 4Professional ballet was first performed in _________.

  A.France

  B.Italy

  C.Russia

  D.America

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• 5The word "pageants" in paragraph 2 means_________.

  A.dances

  B.instruction

  C.royal courts

  D.big shows

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• 6When did the orbiter's problem begin、

  A.Right after it left for Mars.

  B.When it got near Mars.

  C.Right after it landed on Mars.

  D.When it returned to Earth.

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• 7What caused the orbiter's problem、

  A.Scientists used wrong guidelines of mathematics.

  B.Scientists used wrong building materials.

  C.Scientists used different operating systems.

  D.Scientists used different measurement systems.

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• 8Why didn't NASA scientists identify the problem before the orbiter left for Mars、

  A.They didn't know the English system.

  B.They were sure of the success of the trip.

  C.They didn't get enough research funding.

  D.They were tired from working long hours.

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• 9Whooping cranes migrate in winter to__________.

  A.find warmth and food

  B.raise baby whooping cranes

  C.get human help

  D.lay eggs

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• 10Whooping cranes are native to__________.

  A.Mexico

  B.South America

  C.North America

  D.the Persian Gulf

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