初轧坯表面上对应辊缝处平行于轧制方向的条状突起称为耳子。
参考答案：对
AIDS is said________the biggest health challenge to both men and women in that area over the
past few years. [ ]
A. that it is
B. to be
C. that it has been
D. to have been
信息素养或素质的具体内容有那些？
