按钢的含碳量分类，碳素钢中，中碳钢的含碳量为（）。
A.＞0.25%
B.0.25%～0.6%
C.＞0.77%
参考答案：B
投资者参与网上发行应当按价格区间（）进行申购。
A.下限
B.上限
C.平均值
D.以外的范围
It's said that more than 100 _______ will attend this meeting in Shanghai. [ ]
A. man teachers
B. woman teachers
C. men teachers
D. womans teachers
