_______ hearing is really produced in all animals by the effect of pressure is not definitely known by scientists.

试卷相关题目

• 1A group of scientists demanded that the federal government ____ all the studies it has founded on cloning.

  A.reveal

  B.revealed

  C.is revealing

  D.must reveal

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• 2Most scientists agree _______ was hot for at least a time.

  A.some of the moon that

  B.some of the moon it

  C.that some of the moon

  D.while some of the moon

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• 3An air ship _______ by energy from the sun has been suggested.

  A.powering

  B.to power

  C.is powered

  D.powered

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• 4_______ was a planted sapling of the American redwood tree.

  A.There is one of the gifts

  B.One of the gifts that

  C.That one of the gifts

  D.One of the gifts

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• 5There is also an interest in sea horse, puffers and other salty types with shapes ____ and colors ____ than even the showiest of fresh-water fish.

  A.more strange…more bright

  B.stranger…. brighter

  C.stranger… more brighter

  D.more strange…brighter

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• 6It was something we ________.

  A.never hear of

  B.have never heard of

  C.never heard of

  D.had never heard of

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• 7“Could I borrow your bike、”“Yes, you_________”.

  A.can

  B.could

  C.may

  D.would

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• 8The passage confirms that

  A.high oil prices can be controlled if OPEC increase oil output.

  B.Bill Clinton accomplished his mission for the visit to Prince Abdullah.

  C.Abdullah made all his efforts to control oil price without considering the benefits of his own country.

  D.managing the oil market is easier said than don

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• 9How many oil price schemes were recommended by OPEC ministers according to the passage、

  A.One

  B.Two

  C.Three

  D.Four

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• 10What’s the author’s opinion about Saudi Arabia、

  A.Saudi Arabia is the largest country among the members of OPEC.

  B.Saudi Arabia is the most active country in OPEC to control oil prices for the benefit of the rest of the world.

  C.B.Saudi Arabia is the most active country in OPEC to control oil prices for the benefit of the rest of the worl

  D.C.Saudi Arabia is the guardian of the world oil market.D.Saudi Arabia seems to have strong intention to control the oil prices to a acceptable level, but it takes actions very carefully for the consideration of its own benefit.

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