导游人员是______首先接触并且也是接触时间最长的目的地居民，导游人员的举止、言谈话语以及讲解方式都会给______留下深刻的印象。
参考答案：游客 游客
— You didn't wait for Tom yesterday.
— Yes, but we ______. He didn't come.[ ]
A. needn't have
B. didn't need to
C. could have
D. should have
严重颈部瘢痕挛缩病人的麻醉处理以下列哪种为好
A．氯胺酮静脉麻醉
B．颈部硬膜外麻醉
C．快速诱导用喉镜经口腔插管
D．在局麻下切开瘢痕后再插管
E．在半清醒状态、咽喉表面麻醉下经鼻或口插管
