题目

People think children should play sports. Sports are fun, and children keep healthy while playing with others. However, playing sports can have   39   effects on children. It may produce feelings of poor self-respect or aggressive behavior in some children. According to research on kids and sports,40,000,000 kids play sports in the US. Of these,18,000,000 say they have been   40   at or called names while playing sports. This leaves many children with a bad   41   of sports. They think sports are just too aggressive. Many researchers believe adults, especially parents and 近代某一时期重庆餐饮业结构发生很大改变，据统计，这一时期重庆共有餐馆260多家，其中外地餐馆150多家，占60%，远远超过本地餐馆，而且各大菜系，几乎无所不包。下列就这一时期重庆餐饮业的变化，分析最为正确的是 A．鸦片战争后，西餐馆在中国兴起 B．北洋军阀统治时期，外来军阀部队带动重庆地区餐饮业变化 C．甲午中日战争后，重庆被迫开放通商，西餐馆大大增加 D．抗战时期，大量人口内迁，导致重庆餐饮业消费群体的多元化