热情友好,作为一种道德情感,要求导游人员真诚友好地对待每一位旅游者。
参考答案:对
Look! Lucy is ____________ a new red dress. She is beautiful today. [ ]
A. with
B. put on
C. in
D. wear
甲状腺危象的发病原因是
A.食物中缺少碘B.甲状腺激素合成减少C.食物中缺少酪氨酸D.血中甲状腺激素浓度过高E.促甲状腺激素合成减少