下列属于导游员应该掌握的旅行知识的有（）。
A．保险知识
B．入出境知识
C．货币知识
D．交通知识
参考答案：A, B, C, D
解析：
略
______ by many well-known experts and film stars, the product was very popular at one time.
A．To advocate
B．Having advocated
C．Advocating
D．Advocated
初产妇临产后胎头未入盆首先应考虑（）。
A.头盆不称
B.羊水过多
C.腹壁松弛
D.脑积水
E.宫缩乏力
