What a bargain! The price of this dress is_______ that of the skirt.

A．half not as much as

B．much not as half as

C．not half as much as

D．as much as not half

旅行社招徕、接待旅游者，应当制作完整的登记记录，保存有关文件、资料等业务档案，以备旅游行政管理部门核查。其中，出境旅游档案保存期最低为( )年。

A．1

B．2

C．3

D．4