不属于阴离子型聚合机理的特点是()
A.快引发
B.快增长
C.无终止
D.有终止
参考答案:C
---The exam was easy, wasn’t it?
---Yes, but I don’t think _________ could pass it.
A.somebody
B.anybody
C.nobody
D.everybody
哪些列检所可按查定的标准适量增加人员?