—I won't have time to go shopping with you this afternoon.

—But you           me yesterday.[ ]

A. ordered                              

B. mentioned

C. promised                            

D. knew

一位17岁男孩在你家门前被车撞了，你发现他已意识丧失，前额流血，你如何打开气道

A．抬高头部和下巴

B．固定颈椎，抬起下颌

C．清洁口腔，把舌拉向前

D．不移动他，因为可能存在颈部损伤

E．使头部偏斜，抬起下颌