从业务流程的实体角度看,物流活动中的采购业务是一种______。
A.组织内流程
B.跨组织流程
C.部门内流程
D.个人间流程
参考答案:B
负责把RNA转录成互补DNA分子的()酶可以解释由()引起的永久性基因转变。
—I don't know _______ to do with this letter. May I give it to our teacher?
—I don't think so. You'd better not do it like this. [ ]
A. what
B. where
C. how
D. why