良性、恶性肿瘤的主要区别是（）
A.发生部位
B.生长方式
C.转移途径
D.核分裂多少
E.分化成熟的程度与生长特点
参考答案：E
根据首字母提示完成单词 。
1. Dave has worked for 6 hours, so now he is very s .
2. The o day, he bought a present for me.
3. They aren't s enough at that age.
4. He often s___ up reading until midnight.
5. Do you like your school u____?
杀鼠剂氟乙酰胺中毒，特效解毒药是()
A．乙酰胺
B．维生素K
C．硫酸铜
D．硫酸亚铁
E．硫代硫酸钠
