________ of minerals, which are chemical elements or compounds of varying purity .

试卷相关题目

• 1You can see a worldwide list of magazine and book titles on the screen of the computer ________ the name of the subject “Printing in China”.

  A.through typing

  B.on writing

  C.for reading

  D.by typing

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• 2A computer cannot remember who_________；it simply does what __________.

  A.will use it; it was told

  B.uses it; it has told

  C.has used it; it was told

  D.has used it; it told

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• 3Doctor Smith has made another wonderful discovery ________ great importance to science.

  A.which I think is of

  B.which I think it is of

  C.that I think is of

  D.I think which is of

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• 4Dockland ________be a small port． Now it is a newly developed commercial area．

  A.is used to

  B.use to

  C.used to

  D.was used to

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• 5_______ white ginger , one scrapes and washes the roots before drying them .

  A.If makes

  B.When making

  C.Made

  D.The making of

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• 6A way must be thought of ________ his wound, otherwise he might bleed to ________.

  A.to stop; die

  B.stopping; death

  C.to stop; death

  D.stopping; dead

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• 7The high building ________ is a big hotel.

  A.we are looking at it

  B.we looking

  C.at that we are looking

  D.we are looking at

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• 8The car was sold at such a low price ________ few people expected.

  A.like

  B.as

  C.that

  D.which

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• 9________ we know, the stone weighs ________ two tons.

  A.So long as ;as many as

  B.As well as ;more than

  C.So far as ;as much as

  D.So far ;more than

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• 10It was not until he got to the office ________ he remembered ________ the key at home.

  A.when; to leave

  B.that: to leave

  C.when; leaving

  D.that; leaving

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