《烟草行业内部专卖管理监督工作规范》规定,省级局( )对辖区行业内所有烟草专卖品生产经营企业进行一次全面检查。
A.每月
B.季度
C.每半年
D.每年
参考答案:D
二尖瓣复合体不包括()
A.纤维环
B.二尖瓣
C.腱索
D. * * 肌
E.主动脉前庭
The meeting _______ by the time I got there yesterday. [ ]
A. was on
B. has been on
C. had begun
D. has begun