如图所示为某材料的<img src="https://nimg.ppkao.com/2019-04/xiaotian/2019041115551275271.jpg?sign=b8793d13b2830afed7fad52707a1d119&t=62d59856" />曲线,该材料的名义屈服极限<img src="https://nimg.ppkao.com/2019-04/xiaotian/2019041115552667320.jpg?sign=0df66ad0af18eb59d978b4402f116d38&t=62d59856" />对应于曲线上某点的纵坐标值,该点应为()<br /> <img src="https://nimg.ppkao.com/2019-04/xiaotian/2019041115544983473.jpg?sign=b0080dfe0f6b0fe34f42e6bb0adebeb3&t=62d59856" />
A、A点
B、B点
C、C点
D、D点