标题: 弱弱地问:CXD逻辑推理第1篇第4章20题,怎么也不理解 [打印本页] 作者: gedn01 时间: 2009-11-25 21:50 标题: 弱弱地问:CXD逻辑推理第1篇第4章20题,怎么也不理解 20.A researcher discovered that people who have low levels of immune -system activity tend to score much lower on tests of mental health than do people with normal or high immue-system activity.The researcher concluded from this experiment that the immune system protects against mental illiness as well as against physical disease.
The researcher's conclusion depends on which of the following assumptions?
a.High immune-system activity protects against mental illness better than normal immume-system activity does.
b.Mental illness is similar to physical disease in its effects on body system.
c.People with high immune-system activity cannot develop mental illness
d.Mental illness does not cause people's immune-system activity to decrease
e.Psychological treatment of mental illness is not as effective as is medical treatment.