浮选药剂库的（）应当经常检查。
A.罐体
B.闸阀
C.搅拌器
D.地下管路
参考答案：A, B, D
— Do you have anyone particular in ____ for the job?
— In my opinion, Tom is the right person. [ ]
A. head
B. heart
C. mind
D. brain
农业政策与农业法规的辩证统一关系
