The wheel and axle____a rotating lever.

试卷相关题目

• 1There____in this room.

  A.are too many rooms

  B.are too much room

  C.are plenty of rooms

  D.is plenty of room

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• 2A large number of cars____parked in front of my house.

  A.is

  B.are

  C.was

  D.has

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• 3The total number of articles published on cancer____amazing.

  A.are

  B.is

  C.have been

  D.be

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• 4The office staff____gathered to hear the President speak.

  A.is

  B.are

  C.be

  D.will

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• 5Every means____been tried since then.

  A.has

  B.have

  C.are

  D.is

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• 6Ignorance and negligence____this mistake.

  A.cause

  B.have caused

  C.has caused

  D.are

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• 7Truth and honesty____always best policy.

  A.are

  B.is

  C.have been

  D.become

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• 8No sulfur and no phosphorus(磷) ____present in this product .

  A.are

  B.were

  C.will

  D.is

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• 9Every hour and every minute____important.

  A.are

  B.were

  C.is

  D.will

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• 10In each room____ten students.

  A.are

  B.is

  C.there is

  D.there was

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