滚齿机的工艺范围是（）。
参考答案：直齿与斜齿圆柱齿轮、蜗轮、链轮、花键轴、同步齿形带轮
—March 8 is International ______ Day.
—This day is for people to remember that women are just ______ men. [ ]
A. Woman's; as important as
B. Women's; more important than
C. Woman's; more important than
D. Women's; as important as
王昌龄最擅长的是( )
A．七言律诗 B．七言歌行C．五言绝句 D．七言绝句
