Meeting the needs of current generations without compromising the ability of future generations to meet theirs,this is called sustainable development.
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sustainable development is first proposed in in 1987
A. 对
B. 错
Biocentric means that all forms of life have an inherent value.
A. 对
B. 错
Environmental Ethics means that moral basis of environmental responsibility.
A. 对
B. 错
2. 梁弯曲变形时,关于挠曲线形状和内力图图形的相互关系,正确说法是( )
A. 若剪力图对称,则挠曲线也对称
B. 若弯矩图对称,则挠曲线也对称
C. 挠曲线形状与内力图的对称性并无相一致,有时与弯矩图的对称性相致
D. 挠曲线形状有时与剪力图的对称性相一致,有时与弯矩图的对称性相一致
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