引渭水作长池，并在池中筑蓬菜山以象征神山仙境的上林苑是由( )下令修建的。

A．汉武帝
B．唐太宗
C．秦始皇
D．康熙皇帝

An Intranet is (71) the application of Internet technology within an internal or closed user group．Internets are company (72) and do not have a (73) connection to the Internet．Used properly an Internet is highly effective corporate tool，capable of regularly (74) information to empower the workforce with the information needed to perform their roles．Used in this way，Internet represent a step towards the (75) office．

73（）

A．physical

B．psycological

C．spatial

D．spirited