What's really needed, according to most researchers in this field, ________ a“killer”application(应用)particularly suited for the way DNA computing solves problems．

试卷相关题目

• 1The whole family ________ TV attentively．

  A.are watching

  B.is watching

  C.is seeing

  D.are seeing

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• 2The house prices have fallen during the last few months, but what ________ us is that they may go up soon after．

  A.worried

  B.worries

  C.will worry

  D.had worried

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• 3John as well as his sisters ________ going to America to study architecture．

  A.are

  B.is

  C.be

  D.were

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• 4Neither my father nor I ________ there when it happened．

  A.am

  B.are

  C.was

  D.were

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• 5After the meeting was over, nothing but a few used paper cups ________ in the meeting．

  A.are

  B.were

  C.is

  D.was

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• 6A series of meetings ________ about the best way to market the new product

  A.are held

  B.were held

  C.was held

  D.have been held

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• 7Now one-sixth of the population in the country ________ workers．

  A.was

  B.were

  C.are

  D.is

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• 8Quantities of food _______ on the table for such a large quantity of guests．

  A.is

  B.are

  C.is remained

  D.are remained

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• 9Every boy and every girl ________ to attend the evening party．

  A.wish

  B.wishes

  C.hope

  D.wishing

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• 10Films of this type ________ obvious features．

  A.have

  B.has

  C.is

  D.are

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