As people livelonger,finding ways of halting the decline in mental agility is becomingincreasingly important,said professor Ian Robertson，_________(47).
"The biggestthreat to being able to function well and properly is ourbrains,"___________(48).
"There is verystrong evidence,___________(49),that the degree to which you maintain yourmental faculties depends on a handful of quite simple environmentalfactors,"he
said.
__________(50),avoidedhigh stress levels and enjoyed a rich and varied social life are betterequipped to stay alert as they age.Mental stimulation,learning new things and
simply thinkingyoung also help.
A.they may also helptackle the memory ioss associated with old age
B.he toldjournalists
C.director of the Institute of Neuroscienceat Trinity CollegeDublin
D.Those who remainedphysically fit
E.particularly inthe over-50s
[单选题]An active lifestyleand a healthy,fish-rich diet are not only good for your
[单选题]An active lifestyleand a healthy,fish-rich diet are not only good for your
[单选题]An active lifestyleand a healthy,fish-rich diet are not only good for your
[单选题]An active lifestyleand a healthy,fish-rich diet are not only good for your
Only when you can find peace in your heart _____good relationships with others．（
If you want to be healthy，you should keep a good diet.（ ）A. 如果你变得健康，你必须保持良好的饮食习惯
[单选题]Since RAM is only active when the computer is on， your computer usesdisk to
一、单选题题型说明:每题2分，共30题10.Only when you can find peace in your heart ___ good relati
[单选题]C．hildren who are not active or ___diet is high in fat will gain weight quickly.A． whatB． whoseC． whichD． that
Whether such processed foods _ a healthy diet remains to be established.A. fall