犯罪分子是在不同时空出现的,这就决定了公安工作的( )。
A.集中性
B.集中性与分散性并重
C.以集中性为主,以分散性为辅
D.分散性
参考答案:D
—Things are getting even worse now without Jackson.
—It's certain that he will ________ at the basketball court.[ ]
A. show up
B. get up
C. put up
D. take up
决策在谈判中有哪些作用?