轴承合金的浇注工艺过程分哪几个工序？
参考答案：
分准备、镀锡、熔化和浇注四个工序。
儿童体重9．2kg，身长75cm，头围．46cm，胸围46cm时，推测月龄是（）
A.3个月
B.6个月
C.10个月
D.12个月
E.15个月
-Dad，when will you be free？You agreed to go to Wuhan with mefour days ago.
一I’m sorry，Jean.But I think I will have a __________hoilday soon.[ ]
A. four-days
B. four-day
C. four days
D. four day
