事实证明,在( )优化供水系统是最经济合理的办法。
A.区域内
B.城市内
C.分区内
D.行政区划内
参考答案:A
Can you imagine ! He offered me $ 5,000 to break my contract. That's ______. Of course I didn't agree. I would take legal action.
A.fraud
B.blackmail
C.bribery
D.compensation
当制定农产品标准涉及到几个部门时,应由()个部门牵头,联合其他有关部门共同研究制定。
A.几个
B.二个
C.一个
B.三个