If ________ these two colors, being color-blinded can be diagnosed.

试卷相关题目

• 1He was so absorbed in his work that not a sound ______.

  A.did she dare to make

  B.dared she to make

  C.she didn't dare to make

  D.she dared to make

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• 2---- I'm sorry I can't go to the concert with you tonight, because I have a bad cold. ---- If you don't go, __________.

  A.nor do I

  B.nor will I

  C.so do I

  D.so will I

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• 3None of them could understand your meaning, _________?

  A.could they

  B.didn't he

  C.do they

  D.could it

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• 4_______, the disease diphtheria would produce a powerful poison that would kill the patient.

  A.If untreated

  B.If it untreated

  C.To be untreated

  D.If being untreated

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• 5Out of the crowded bus ________ ,who was dressed in a black suit and waved to a woman.

  A.a tall man in his thirties stepped

  B.stepped a tall man in his thirties

  C.did a tall man in his thirties step

  D.did a tall man step in his thirties

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• 6Our bad living habits will destroy the earth. Only by changing ________ we live   ________ save the earth.

  A.what; can we

  B.how; can we

  C.where; we can

  D.how, we can

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• 7when the newspaper boy got to a blue door, _________, which frightened him away as fast as possible.

  A.out a fierce dog rushed

  B.out did a fierce dog rush

  C.out rushed a fierce dog

  D.rushed out a fierce dog

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• 8— I went to see a film yesterday. — Oh, did you? ________ .

  A.So I did

  B.I did so

  C.So do I

  D.So did I

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• 9So hard-working _________ that he sets a good example to all the other classmates.

  A.he is

  B.is he

  C.does he

  D.he does

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• 10I would have paid a visit to you _______ possible.

  A.if it were

  B.would it be

  C.had it been

  D.should it have been

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