坚强意志的养成是 [ ]
A．个人努力奋斗的结果
B．长期磨炼的艰苦过程
C．先天所具有的
D．培养良好兴趣的结果
答案：B
She won the first prize,though______of us______it.
A．no one;expected
B．none;had expected
C．nobody;expecting
D．none;would expect
浇铸铝镇静钢时为什么常发生中间包水口堵塞？
