【单选题】
A <{p}><{font _mstmutation="1" _msttexthash="13175019" _msthash="475"}>加载路径<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msttexthash="277521920" _msthash="351"}>.先沿加载路径回到屈服阶段再沿近似平行于弹性阶段直线的斜直线到横轴;<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msttexthash="33435051" _msthash="523"}>平行于纵轴的直线<{/font}><{br/}><{/p}>
D <{p data-we-empty-p="" _msttexthash="83358444" _msthash="307"}>近似平行于弹性阶段直线的斜直线。<{/p}>
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