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    Many parents today worry about their children's diets. Then what is a healthy diet for children? Miss Jones from Happy Children Hospital gives the following advice:
    ◆Children shouldn't eat food with too much salt, because it can cause high blood pressure(高血压).
    ◆Children should eat food with less fat, oil and sugar. They should not eat too much junk food.
    ◆Fruit and vegetables are rich in vitamins(维生素). Children need to eat fruit and vegetables often.
    ◆Water is important to everyone. Children need to drink enough water every day.
    ◆Children need to eat breakfast every day. It is good for their bodies and minds.

现在的成本比原来降低了15%，现在的成本是原来的(   )。

揭开货币的神秘面纱，我们就会发现货币本身并不神秘。因为它（    ）

东汉初年，光武帝曾借故搜捕王侯宾客，“坐死者数千人”；明帝借口楚王信奉黄老，与方士往来，疑其谋反，收捕者达数千人。这些做法（    ）

“最美妈妈”吴菊萍、“最美教师”张丽莉、“最美司机”吴斌……这些“最美人物”的“美”让我们对责任有了进一步的理解。下列观点正确的是（  ）

①承担责任就是为了得到人们的赞誉              ②要自觉地承担责任，努力做负责任的公民

③责任产生于社会关系中的相互承诺              ④人人尽到自己的责任，才能共建和谐社会