各种急性锐痛选用
A．喷他佐辛B．吗啡C．美沙酮D．芬太尼E．罗通定
参考答案：B
如图所示，在Rt△ABC中，∠A=90°，BD平分∠ABC，交AC于点D，且AB=6，BD=10，求点D到BC的距离。
When he grows up,he is so successful that he his hard work.
A．took pride in
B．takes pride in
C．takes pride
D．took pride
