_____ recent research, effective treatments are available.

Many researchers are currently trying to______.

A．use animals involved in research more effectively

B．slow down the transition for some experiments

C．challenge the scientific value of animal testing

D．raise the cost of using any animals in research

A．insane

B．infectious

C．foreign

D．poisonous

A．Y

B．N

C．NG

What did a recent research show？

A．Private-school kids slightly outperformed public-school kids.

B．Public-school kids slightly outperformed private-school kids.

C．Private-school kids slightly outnumbered public-school kids.

D．Public-school kids slightly outnumbered private-school kids.

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

A．Drawing up

B．Drawing on

C．Putting up

D．Putting on