Public goods are those commodities _____ enjoyment nobody can be effectively excluded.

试卷相关题目

• 1_____ about one million years ago，the fossil record shows an accelerating growth of human brain.

  A.Starting

  B.Having started

  C.Having been started

  D.Being started

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• 2Rather than _____ everything to the last minute，he always prefers to start early.

  A.leave

  B.to leave

  C.leaving

  D.leaves

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• 3One should never lose one's heart when _____ with temporary difficulties.

  A.being confronted

  B.confronted

  C.having been confronted

  D.confronting

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• 4Just as no two words are truly synonoyms， _____ no two different expressions，or ways of expressions，can mean exactly the same thing.

  A.so

  B.as

  C.that

  D.therefore

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• 5By the time you arrive home，I _____ for several hours，so please don't make a noise when you come in.

  A.shall be sleeping

  B.shall have slept

  C.shall sleep

  D.shall have been sleeping

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• 6Only when the process of meeting the basic need for food reached a certain level of sophistication _____ to follow other pursuits.

  A.it was possible for humans

  B.was it possible for humans

  C.were humans possible

  D.possible for humans it was

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• 7Very few will doubt that it is science that has at once quickened the demand for general education in modern times _____ made the education itself effective.

  A.as well as

  B.but also

  C.and also

  D.and

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• 8The father was thoroughly dishonest and the son _____ him.He has already been in the courts for stealing.

  A.seeks after

  B.takes after

  C.gets the best of

  D.counts on

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• 9I took the children to the Zoo today to _____ the party they missed the other day.

  A.provide for

  B.look for

  C.take delight in

  D.make up for

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• 10They were having a violent quarrel but _____ when I came in.

  A.broke up

  B.cut off

  C.broke off

  D.hung up

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