《人民防空工程设计防火规范》规定，歌舞厅、卡拉ok厅、夜总会、录像厅、放映厅、桑拿浴室、游艺厅、网吧等歌舞娱乐放映游艺场所,当设置在地下一层时，室内地坪与室外出入口地面高差不应大于()。

A.8m

B.9m

C.10m

— Have you seen ____ pencil? I left it here this morning．

—Is it _____black one? I think I saw it somewhere．   

A．a; the

B．the; the

C．the; a

D．a; a