Professor Clark advises that their play raise the question of whether love or a career is more important for modern independent girls.
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Professor Clark suggests setting the final scene in a calm, quiet place.
A. 对
B. 错
若已知力在直角坐标系三个坐标轴上的投影,可写出该力的解析表示式
A. 对
B. 错
请同学们将第五周上课内容以笔记形式拍成图片上传。保证图片清晰,字迹工整。
选择制造下列零件的材料。机床主轴()
A. GCr15
B. 40Cr
C. ZGMn13-3
D. 20CrMnTi