Which of the following is evidence that TT is widely practiced、

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• 1By “just the tip of the iceberg” (Line 2, Par

  A.8), Siegel suggests that ____________.A.half-brain sleep is a phenomenon that could exist among other species

  B.most birds living in cold regions tend to be half sleepers

  C.the mystery of half-brain sleep is close to being solved

  D.half-brain sleep has something to do with icy weather

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• 2While sleeping, some water mammals tend to keep half awake in order to __________.

  A.avoid being swept away by rapid currents

  B.emerge from water now and then to breathe

  C.alert themselves to the approaching enemy

  D.be sensitive to the ever-changing environment

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• 3The example of a bird sleeping in front of a mirror indicates that _____________.

  A.birds prefer to sleep in pairs for the sake of security

  B.the phenomenon of birds dozing in pairs is widespread

  C.a single pet bird enjoys seeing its own reflection in the mirror

  D.even an imagined companion gives the bird a sense of security

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• 4According to the passage, birds often half sleep because ______________.

  A.they have to constantly keep an eye on their companions

  B.the two halves of their brain are differently structured

  C.they have to watch out for possible attacks

  D.their brain hemisphere take turns to rest

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• 5A new study on birds’ sleep has revealed that ____________.

  A.birds can control their half-brain sleep consciously

  B.birds seldom sleep with the whole of their brain at rest

  C.half-brain sleep is found in a wide variety of birds

  D.half-brain sleep is characterized by slow brain waves

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• 6Very few TT practitioners responded to the $1 million offer because ____________.

  A.they didn’t take the offer seriously

  B.they didn’t want to risk their career

  C.they were unwilling to reveal their secret

  D.they thought it was not in line with their practice

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• 7The purpose of Emily Rosa’s experiment was ____________.

  A.to see why TT could work the way it did

  B.to find out how TT cured patient’s illness

  C.to test whether she could sense the human energy field

  D.to test whether a human energy field really existed

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• 8Why did some TT practitioners agree to be the subjects of Emily’s experiment、

  A.It involved nothing more than mere guessing.

  B.They thought it was going to be a lot of fun.

  C.It was more straightforward than other experiments.

  D.They sensed no harm in a little girl’s experiment.

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• 9What can we learn from the passage、

  A.Some widely accepted beliefs can be deceiving.

  B.Solid evidence weighs more than pure theories.

  C.Little children can be as clever as trained TT practitioners.

  D.The principle of TT is too profound to understand.

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• 10We learn from the first paragraph that two systems of automated highways __________.

  A.are being planned

  B.are being modified

  C.are now in wide use

  D.are under construction

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