The purpose of Frederick II’s experiment was ________.

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• 1The storm sweeping over this area now is sure to cause ________ of vegetables in the coming days.

  A.rarity

  B.scarcity

  C.invalidity

  D.variety

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• 2We cannot always ________ the wind, so new windmills should be so designed that they can also be driven by water.

  A.hang on

  B.count on

  C.hold on

  D.come on

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• 3Achieving a high degree of proficiency in English as a foreign language is not a mysterious ________ without scientific basic.

  A.process

  B.practice

  C.procedure

  D.program

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• 4As for the winter, it is inconvenient to be cold, with most of ________ furnace fuel is allowed saved for the dawn.

  A.what

  B.that

  C.which

  D.such

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• 5Most electronic devices of this kind, ________ manufactured for such purposes, are tightly packed.

  A.that are

  B.as are

  C.which is

  D.it is

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• 6The reason some children are backward in speaking is most probably that ________.

  A.they are incapable of learning language rapidly

  B.they are exposed to too much language at once

  C.their mothers respond inadequately to their attempts to speak

  D.their mothers are not intelligent enough to help them

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• 7What is exceptionally remarkable about a child is that ________.

  A.he is born with the capacity to speak

  B.he has a brain more complex than an animal’s

  C.he can produce his own sentences

  D.he owes his speech ability to good nursing

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• 8Which of the following can NOT be inferred from the passage、

  A.The faculty of speech is inborn in man.

  B.Encouragement is anything but essential to a child in language learning.

  C.The child’s brain is highly selective.

  D.Most children learn their language in definite stages.

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• 9If a child starts to speak later than others, he will in future ________.

  A.have a high IQ

  B.be less intelligent

  C.be insensitive to verbal signals

  D.not necessarily be backward

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• 10By “a well-oiled cog in the machinery” the author intends to render the idea that man is ________.

  A.a necessary part of the society though each individual’s function is negligible

  B.working in complete harmony with the rest of the society

  C.an unimportant part in comparison with the rest of the society, though functioning smoothly

  D.a humble component of the society, especially when working smoothly

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