‌图示弯矩图和剪力图，可能同时出现的是（    ）。‍

塑性材料的真应力－真应变曲线后期一直上扬，说明施加载荷和应力都在上升A．正确 B．错误

不定项选择塑性材料的真应力－真应变曲线后期一直上扬，说明施加载荷和应力都在上升

He _______ to study harder in the future so that he cou...

单项选择题He _______ to study harder in the future so that he could have more opportunities to find a better job. A. he loved adventure B. cycling was a lot of fun C. he wanted to find himself a wife D. he supported environmental protection

下列属于正常胎位的有( )。A．LOA B．ROA C．LOT D．ROP E．RMA

多项选择题下列属于正常胎位的有( )。