可变荷载标准值应根据()最大荷载概率分布的某一分位值确定。
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矿石中矿物颗粒的形态大小和相互关系所表现的特征叫矿石构造。()
The debate between nature and nurture is significant because______.
A. it has profound value to researchers
B. it has academic appeal
C. people"s beliefs about human nature can lead to dangerous actions
D. it forms the basis for our political policies
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