Will it matter if you don' t take your breakfast? Recently a test was given in the United
The results of the test show that______.
A.breakfast has great effect on work and studies
B.breakfast has much to do with people's health
C.a person will work better if he has simple breakfast
D.breakfast only affects those who work with their brains
A
解析:细节题。答案在本文第六至第七句。早饭不仅只对脑力劳动者产生影响,简单的早餐不会使人工作得更好,故选项C、D不正确。早餐虽然和人们的健康有很大关系,但文章中的试验结果表明了早餐对工作和学习的巨大影响。所以选项A比选项B更贴切。