Electrolysis(电解)is the process ______ electric current is passed through a substance to cause a chemical charge.

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• 1A new survey released by Yale University finds that Americans trust scientists most when ______ comes to information on climate change．

  A.that

  B.it

  C.this

  D.there

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• 2—I like the yellow new Beetle. —A smart car but we can’t afford_________ for the time being.

  A.one

  B.that

  C.the one

  D.it

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• 3_____is widely known that you value more what you haven’t rather than what you have .

  A.As

  B.What

  C.It

  D.Which

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• 4---As we all know, reading gives our minds only materials of knowledge. ---Yes. It’s thinking that makes _____ we read ours.

  A.that

  B.what

  C.which

  D.it

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• 5    happened to be out that day , so you didn’t find me .

  A.It

  B.This

  C.You

  D.I

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• 6—Which umbrella can I take? —You can take______of them; I will use none.

  A.both

  B.any

  C.either

  D.each

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• 7_____is compulsory by law for a citizen to undertake military service.

  A.That

  B.There

  C.This

  D.It

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• 8—Could we meet at 3 o’clock this afternoon? ---Sorry, let’s make it __ day.

  A.other’s

  B.the other

  C.another

  D.other

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• 9Mary made a few changes to the design and made her own needle, _____ saving people a lot of time.

  A.one

  B.she

  C.that

  D.it

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• 10There are several editions of English-English dictionaries here. I wonder if you want to buy     .

  A.it

  B.one

  C.another

  D.them

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