Recent research into aging suggests that the body's defense mechanisms may lose the abilit
A.insane
B.infectious
C.foreign
D.poisonous
A.insane
B.infectious
C.foreign
D.poisonous
Recent research findings prove that ______ .
A.rewards can result in low productivity
B.behaviorism is still influential in America
C.positive reinforcement still work wonders
D.there is a crisis of values in American school
The research on girls and computers is ______.
A.based on a few recent articles
B.presented by one person
C.based on thousands of studies
D.not considered well grounded
The recent Genome Wars were symbolic of _____.
[A] the enthusiasm in scientific research
[B] the significance of the space race
[C] the public versus private conflict
[D] the prospect of the completion of DNA sequence
Research carried out in recent opinion polls shows that _________
A.the present high unemployment figures are a fact of life
B.new jobs .must be created in order to rectify high unemployment figures
C.available employment must be most widely distributed among the unemployment
D.available employment should be restricted to a small percentage of the population
According to recent research,___________________(退休的人如果找不到什么事情可做,常会意志消沉).
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