What caused the orbiter's problem、

试卷相关题目

• 1When 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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• 2How long did it take the orbiter to get close to mars、

  A.One year.

  B.Less than one year.

  C.About two and a half year.

  D.More than three years.

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• 3NASA 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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• 4We 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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• 5Who had an important influence on early ballet、

  A.Balanchine

  B.Louis XIV

  C.Antoinette

  D.Diaghilev

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• 6Why 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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• 7Whooping 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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• 8Whooping cranes are native to__________.

  A.Mexico

  B.South America

  C.North America

  D.the Persian Gulf

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• 9Operation Migration aims to__________.

  A.teach adult cranes how to fly

  B.lead young cranes on their first trip south

  C.breed cranes in special parks

  D.transport cranes to the North

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• 10The distance covered by the young whooping cranes on their trips south is__________.

  A.120 miles

  B.1,200 miles

  C.1,931 miles

  D.2, 000 miles

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