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

A．update

B．updated

C．updates

D．updating

使用药物流产，应在妊娠（）。

A.7周（50天）内

B.8周内

C.9周内

D.10周内

E.12周内