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【单选题】The first true piece of sports equipment that man invented was the ball. In ancient Egypt, as everywhere, pitching (投掷) stones was a favorite children’s game. But a badly thrown rock could hurt a chil...
A.
many different games with balls
B.
many different kinds of games
C.
only one ball game
D.
different games with similar rules
【单选题】下面哪些是《中国居民膳食指南》对学龄前儿童的建议（）
A.
每日饮奶
B.
保证吃好早餐
C.
养成不挑食、不偏食的良好饮食习惯
D.
少吃零食、引用清淡饮料、控制食糖摄入