This is just _______ challenging job all the students want to get. Do you have anyone in ____ mind for it?  [ ]

A. the; the

B. a; /

C. a; the

D. the; /

疫区内的检疫对象，在达到基本消灭或已取得控制蔓延的有效办法以后，应按照疫区划定时的程序，办理（），经批准后明文公布。