og verbal review 7

zxkingsey

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 poeple with normal or high immune-system activity. The researcher concluded form this experiment that the immune system protects against mental illness 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 immune-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 poeple's immune-system activity to decrease.


(E)Psychological treatment of mental illness is not as effective as is medical treatment

答案是D.我想问一下C错的在哪里?

OG上解释得是:immune system activity could protect mental health without offering total prevention of mental illness.怎么理解
谢谢~~~

bbcxd

我低想法食

people who have low levels of immune-system activity tend to score much lower on tests of mental health than do poeple with normal or high immune-system activity

Sore higher DOES NOT EQUAL TO no mental disease

zxkingsey

我低想法食

people who have low levels of immune-system activity tend to score much lower on tests of mental health than do poeple with normal or high immune-system activity

Sore higher DOES NOT EQUAL TO no mental disease

-- by 会员 bbcxd (2010/2/6 23:16:20)

那你的意思可否表达为protect against mental disease  不等于 no mental disease??

谢谢

bbcxd

Sorry my Chinese is not very good neither...

score higher in the test of mental health DOES NOT EQUAL TO cannot develop mental illness. At least, the argument did not point out specifically.