国务院常务会议通过的《麻醉药品和精神药品管理条例》（国务院令第442号）是（）
A.法律
B.行政法规
C.地方性法规
D.部门规章
参考答案：B
--- He didn’t go to the concert yesterday, did he?
--- _____. He was busy studying for the test all day.
A．No, he didn’t
B．Yes, he did
C．No, he did
D．Yes, he didn’t
当传染病暴发，流行时，经省、自治区、直辖市政府决定，可以对其实行封锁的地区是
A．甲类传染病疫区B．乙类传染病疫区C．甲类和乙类传染病疫区D．甲、乙、丙三类传染病疫区
