Eta Carinae is now engaging in

试卷相关题目

• 1ACOG's efforts to educate women about cancer will be greatly appreciated.

  A.Right

  B.Wrong

  C.Not mentioned

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• 2Some American women are too afraid of finding cancer to undergo screening.

  A.Right

  B.Wrong

  C.Not mentioned

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• 3Some American women are just unwilling to change their lifestyles.

  A.Right

  B.Wrong

  C.Not mentioned

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• 4Most American women know too little about how to lower their cancer risk.

  A.Right

  B.Wrong

  C.Not mentioned

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• 5More women are dying from cancer than men in Americ

  A.A.Right

  B.Wrong

  C.Not mentioned

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• 6The word "period" in Paragraph 3 means the length of time

  A.over which stars vary in brightness.

  B.for which Eta Charinae's brightening lasts.

  C.Eta Carinae takes to become a supernova.

  D.it takes the laser from Eta Carinae to travel to the earth.

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• 7Eta Carinae is hard to observe because

  A.it is too far away.

  B.there is too much dust and gas around it

  C.the binoculars are not powerful enough.

  D.it does not send out infrared light.

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• 8Astronomers are particularly interested in Eta Carinae because

  A.it is in its final stage.

  B.it is a supernova.

  C.it exploded in 1987.

  D.it is brighter than the Sun.

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• 9Which of the following statements about Eta Carinae is NOT true、

  A.It will end up as a supernova.

  B.It can be seen only through binoculars.

  C.It is the only star that sends out an ultraviolet laser.

  D.Its ultraviolet laser is brighter than that of the Sun.

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• 10The IOC is investigating its own officials for__________.

  A.running the black market

  B.secretly meeting reporters

  C.illegally selling tickets

  D.criticizing Sunday Times

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