卷烟工业企业所在地的()烟草专卖行政主管部门,可以根据上一级烟草专卖行政主管部门的委托签发烟草专卖品个人携带证。
A、县级
B、地市级
C、省级
D、国家
参考答案:A
Do you often say "______" to your parents before you go to bed? [ ]
A. Good evening.
B. Goodbye.
C. Going to bed.
D. Good night.
如图所示,物体P静止于固定的斜面上,P的上表面水平。现把物体Q轻轻地叠放在P上,则()
A.P向下滑动
B.P静止不动
C.P所受的合外力增大
D.P与斜面间的静摩擦力增大