客户进入网点，大堂经理应与客户保存目光接触、面带微笑、亲切问候。
参考答案：对
Lucy is a very optimistic girl. ______ she is faced with difficulties, she always sees the bright side.
A．Every time
B．Now that
C．As soon as
D．On condition that
在超过25‰坡度的线路上进行调车作业时，有何规定？
