公安机关的职责是由( )确认的。
A.国家法律
B.行政法规
C.部委规章
D.司法解释
参考答案:A,B
解析:公安机关的职责是由国家法律和法规确认的。
During many sectors are foundering, the $21 billion videogame-software industry is booming, adding game developers at a rate of 2,500 a year in the United States alone.
A.When
B.Whereas
C.Would
D.While
提前防卫