所谓( )技术就是在包过滤的同时，检查数据包之间的关联性，检查数据包中动态变化的状态码。
参考答案：状态检测
As our country has realized the problem and taken some measures, the price of medicine has _____ and
poor people can also afford good medicine. [ ]
A. gone down
B. brought down
C. turned down
D. cut down
下列要点中不属于中级工考查的范围的是（）。
A.试液定容、移液操作迅速、准确
B.滴定操作规范、迅速、准确
C.试样称量迅速、准确
D.试样分解操作娴熟
