军队职称英语真题汇编-DE阅读理解51

试卷预览

• 1One gain of salt contains（　）。

  A.a few thousand atoms

  B.many millions of atoms

  C.several heated atoms

  D.one million atoms

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• 2The way an object behaves depends on the（　）。

  A.kinds of atoms in it

  B.number of atoms in it

  C.way its atoms behave

  D.both A and C

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• 3Atoms in an object move（　）。

  A.at all times

  B.very fast

  C.sometimes

  D.unless the object has melted

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• 4An object holds is shape because its atoms（　）。

  A.usually hold together

  B.move very fast

  C.are very hot

  D.are not moving

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• 5When its atoms leave their usual places, we say that an object is（　）。

  A.shrinking

  B.expanding

  C.changing places

  D.melting

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