请答出三视图的投影规律?
参考答案:
三视图的投影规律是:主视图与俯视图之间是“长对正”;主视图与左视图之间是“高平齐”;俯视图与左视图之间是“宽相等”。
将不溶于水的药物研成细末后再入水中搅匀或研磨的炮制方法称为()
A.润
B.漂
C.水飞
D.淬
E.煮
Dorothy was always speaking highly of her role in the play, ______, of course, made the others unhappy.
A. who B. which C. this D. what