缎面加工
参考答案：
使制件表面成为漫反射层的处理过程。经过处理的表面具有缎面状非镜面闪烁光泽。
用适当的代词填空。
1. Don't put your clothes here, put away, please.
2. This isn't my skirt, is orange.
3. I can't carry the desk. is too heavy.
4. "Give some bananas." Which ones are theirs?
5. "Is this your sock?" "Let see. Oh, yes."
A、B、C三药的LD50分别为20、40、60mg/kg；ED50分别为10、10、20mg/kg三药安全性大小的顺序应为
A．A＞C＞B
B．B＞A＞C
C．B＞C＞A
D．A＞B＞C
E．C＞B＞A
