单项选择题

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

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单项选择题

With what conclusion, regarding French mother, is the reader left

A．They equate goodness with reason.
B．They identify wisdom with reasonableness.
C．They know how to appeal to what is best in their sons.
D．They are the most significant influence in their son's lives.

单项选择题

According to behaviorism, all human actions ______.

A．are of a great mystery
B．have no bearing on human drives
C．are supposed to be highly motivated
D．are based on stimulus and response