题目内容
梁在平面弯曲时，其截面上的最大拉、压应力绝对值是不相等的。
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合理布置支座的位置可以减少梁内的最大弯矩，因而达到提高梁的强度和刚度的目的。 （）
How Can a Parent Help?Mothers and fathers can do a lot to ensure a safe landing in early adulthood for their kids. Even if a job’s starting salary seems too small to satisfy an emerging adult’s need for rapid content, the transition from school to work can be less of a setback if the start-up adult is ready for the move. Here are a few measures, drawn from my bookReady or Not, Here Life Comes, that parents can take to prevent what I call “work-life unreadiness.”
1. → A →2. → E →3. → 4. →5.
()是中国梦的主体,是中国梦的创造者和享有者
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