【简答题】A.Because people have to spend too much time and energy to produce it. B.Because too much grain protein is needed to produce it. C.Because it contains too much fat and protein. D.Because it is not goo...
【简答题】Most of us lead unhealthy lives; we spend far too much sitting down. If in addition we are careless about our diets, our bodies soon become loose and fatty and our systems slowmoving. There are some ...