结晶性
参考答案：
热塑性塑料按其冷凝时有无出现结晶现象，可划分为结晶形与非结晶（又称无定形）两大类。
Which of the following is NOT true? [ ]
A. It's impolite to eat with your arms or elbows on the table in America.
B. In Thailand people don't use knives to eat at all.
C. It's not polite to smoke during a meal in France.
D. Indians eat with their left hands.
《中华人民共和国药品管理法》第102条规定的药品是指用于（）。
A.预防、治疗人的疾病的物质
B.防病、治病的特殊商品
C.预防、诊断人及动物的疾病的物质
D.预防、治疗、诊断人及动物疾病的物质
E.预防、治疗、诊断人的疾病的物质
