In the study, researchers succeeded in determining how coffee ________ different areas of the brain in 15 volunteers.

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• 1The developing nations want rich countries to help shoulder the cost of ________ forests.

  A.updating

  B.upgrading

  C.conserving

  D.constructing

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• 2This kind of songbird sleeps much less during its annual ________,but that doesn’t seem to affect its flying.

  A.migration

  B.emigration

  C.conveyance

  D.transference

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• 3Online schools, which ________ the needs of different people, have emerged as an increasingly popular education alternative.

  A.stir up

  B.switch on

  C.cater to

  D.consent to

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• 4We want out children to have more than job skills; we want their lives to be ________ and their perspectives to be broadened.

  A.envisaged

  B.excelled

  C.exceeded

  D.enriched

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• 5Researchers have found that happiness doesn’t appear to be anyone’s; the capacity for joy is a talent you develop largely for yourself.

  A.disposal

  B.domain

  C.heritage

  D.hostage

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• 6They are trying to ________ the risk as much as they can by making a more thorough investigation of the market.

  A.minimize

  B.harmonize

  C.summarize

  D.jeopardize

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• 7The cycles of the sun and moon are simple, but forces which have shaped human lives since the beginning.

  A.frantic

  B.gigantic

  C.sensational

  D.maximum

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• 8An effort was launched recently to create the first computer ________ of the entire human brain.

  A.repetition

  B.repression

  C.saturation

  D.simulation

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• 9In the face of the disaster, the world has united to aid millions of ________ people trying to piece their lives back together.

  A.fragile

  B.primitive

  C.vulnerable

  D.susceptible

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• 10AIDS is a global problem that demands a unified, worldwide solution, which is not only the responsibility of nations in which AIDS is most ________.

  A.relevant

  B.prevalent

  C.vigorous

  D.rigorous

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