Scottsdale was a typical American suburb in the 1950s,with children going to each other's houses to play, or riding their bikes around the neighborhood．But for Steven Spielberg none of these “norm
In __________ review off 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%. _______ A. a; the
的最小正周期和最小值，并写出该函数在区间
上的单调递增区间。
